Concrete, Super Absorbent concrete IDM10
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Done by Pioneers group at Zobaida independent secondary school for girls. Under supervision from AL-Bairaq
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This document defines and provides examples of key materials science concepts including density, viscosity, conductivity, malleability, hardness, odor, evaporation, filtration, distillation, chemical vs physical changes, chemical changes, chemical properties, and the procedures of evaporation. Examples are given to illustrate concepts like using different liquids to compare viscosity, testing the hardness of objects by scraping, and wafting objects to smell their odor. Key terms are defined, such as density using the equation D=Mass/Volume, and distillation being the separation of substances in a solution based on boiling points.
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The document describes the procedure for conducting a slump test to determine the workability of a concrete mixture. The test involves mixing concrete with a ratio of 1:2:4 of coarse aggregate, fine aggregate, and cement. The mixture is placed in a slump cone in layers and tamped between each layer. When the cone is removed, the slump is measured as the difference between the height of the cone and the highest point of the concrete. For the sample tested, the slump was 50mm indicating medium workability. The slump test provides a simple way to check consistency and uniformity of concrete batches.
Density, (relative density) specific gravity & absorption of coarse aggre...
1) The document describes a test conducted to determine the density, specific gravity, and absorption of coarse aggregate.
2) The test procedure involves obtaining a sample of coarse aggregate, drying it in an oven, submerging it in water, weighing it at various stages to determine density and absorption values using calculations.
3) The results of the test provide the density, specific gravity when oven dry and saturated surface dry, and absorption percentage of the coarse aggregate sample.
Concrete, Professors Group ,Adding Plastic waste to Concrete ,IDM8
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Done By :Professors Group
School Name :Al-Karana Independent Secondary school for Girls
Concrete : In this Module students learn the properties of Concrete and its features and contents and also knowing the different between cement and Concrete and the importance on adding reinforcement materials on Concrete samples.
Adding Plastic Waste to Concrete: in order to increase concrete strength, we add the plastic waste into the concrete Sample
We also will use the unwanted Plastic waste as recyclingThe use performance of Corundum Brick
The use performance of corundum brick refers to the corundum brick has the performance when used in high temperature. Including refractoriness, refractoriness under load, linear change rate, thermal shock resistance, slag resistance, acid resistance, alkali resistance, oxidation resistance, resistance to hydration and CO erosion resistance, etc.
1. Increase the refractoriness.
Refractoriness refers to corundum brick with non-melting performance under resistance to high temperature. Refractoriness is the basis for determining material whether can be used as a refractory brick. The international standardization organization stipulates above 1500 ℃ refractoriness of inorganic non-metallic materials is the refractory material. The significance of refractoriness and melting point is different. Can not take refractoriness as the use of corundum brick temperature. The basic factor of refractoriness to decide is chemical mineral composition and its distribution of corundum brick.
2. Increase the refractoriness under load.
Corundum brick refractoriness under load refers to the products bear constant load deformation temperature under the condition of rise temperature. It shows corundum brick the ability of resistance to high temperature and load effect, to a certain extent, indicates that products in the similar conditions of use case structure strength. The major factors that affect corundum brick refractoriness under load is the chemical mineral composition and microstructure. To improve the purity of raw materials, reduce the content of low melting or flux, increase the molding pressure, made of high density of bricks, can significantly improve products refractoriness under load.
3. Improve the thermal shock resistance
Thermal shock resistance refers to the corundum brick with damage resistance performance to the temperature change rapidly. Generally speaking, the thermal expansion rate of corundum brick is greater, thermal shock resistance is worse. The thermal conductivity of products is higher, thermal shock resistance is better, the better. In addition, the organization structure and grain composition shape and other products of corundum brick have effect on the thermal shock resistance.
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Zhengzhou Sunrise Refractory Co., Ltd can provide fused cast azs block which have passed the ISO international certified. With reliable quality, competitive price and prompt delivery, Sunrise has established long-term business and cooperation relationship with many customers in different countries and regions. For any further information, Contact us, Sunrise are sincerely looking forward to establishing a long-term mutually beneficial relationship with you.
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This document provides information on concrete, including:
- Concrete is a mixture of cement, water, and aggregates that hardens over time into a strong building material.
- Proper mixing, placing, and curing of the concrete allows it to gain strength through a process called hydration as it ages.
- Factors like the water-cement ratio, type of aggregates, compaction, and curing affect the properties and strength of hardened concrete.
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completed my BSc degree from svvv indore
and persuing master from SVVV
Science materals
This document defines and provides examples of key materials science concepts including density, viscosity, conductivity, malleability, hardness, odor, evaporation, filtration, distillation, chemical vs physical changes, chemical changes, chemical properties, and the procedures of evaporation. Examples are given to illustrate concepts like using different liquids to compare viscosity, testing the hardness of objects by scraping, and wafting objects to smell their odor. Key terms are defined, such as density using the equation D=Mass/Volume, and distillation being the separation of substances in a solution based on boiling points.
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The document describes the procedure for conducting a slump test to determine the workability of a concrete mixture. The test involves mixing concrete with a ratio of 1:2:4 of coarse aggregate, fine aggregate, and cement. The mixture is placed in a slump cone in layers and tamped between each layer. When the cone is removed, the slump is measured as the difference between the height of the cone and the highest point of the concrete. For the sample tested, the slump was 50mm indicating medium workability. The slump test provides a simple way to check consistency and uniformity of concrete batches.
Density, (relative density) specific gravity & absorption of coarse aggre...
1) The document describes a test conducted to determine the density, specific gravity, and absorption of coarse aggregate.
2) The test procedure involves obtaining a sample of coarse aggregate, drying it in an oven, submerging it in water, weighing it at various stages to determine density and absorption values using calculations.
3) The results of the test provide the density, specific gravity when oven dry and saturated surface dry, and absorption percentage of the coarse aggregate sample.
Concrete, Professors Group ,Adding Plastic waste to Concrete ,IDM8
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Done By :Professors Group
School Name :Al-Karana Independent Secondary school for Girls
Concrete : In this Module students learn the properties of Concrete and its features and contents and also knowing the different between cement and Concrete and the importance on adding reinforcement materials on Concrete samples.
Adding Plastic Waste to Concrete: in order to increase concrete strength, we add the plastic waste into the concrete Sample
We also will use the unwanted Plastic waste as recyclingThe use performance of Corundum Brick
The use performance of corundum brick refers to the corundum brick has the performance when used in high temperature. Including refractoriness, refractoriness under load, linear change rate, thermal shock resistance, slag resistance, acid resistance, alkali resistance, oxidation resistance, resistance to hydration and CO erosion resistance, etc.
1. Increase the refractoriness.
Refractoriness refers to corundum brick with non-melting performance under resistance to high temperature. Refractoriness is the basis for determining material whether can be used as a refractory brick. The international standardization organization stipulates above 1500 ℃ refractoriness of inorganic non-metallic materials is the refractory material. The significance of refractoriness and melting point is different. Can not take refractoriness as the use of corundum brick temperature. The basic factor of refractoriness to decide is chemical mineral composition and its distribution of corundum brick.
2. Increase the refractoriness under load.
Corundum brick refractoriness under load refers to the products bear constant load deformation temperature under the condition of rise temperature. It shows corundum brick the ability of resistance to high temperature and load effect, to a certain extent, indicates that products in the similar conditions of use case structure strength. The major factors that affect corundum brick refractoriness under load is the chemical mineral composition and microstructure. To improve the purity of raw materials, reduce the content of low melting or flux, increase the molding pressure, made of high density of bricks, can significantly improve products refractoriness under load.
3. Improve the thermal shock resistance
Thermal shock resistance refers to the corundum brick with damage resistance performance to the temperature change rapidly. Generally speaking, the thermal expansion rate of corundum brick is greater, thermal shock resistance is worse. The thermal conductivity of products is higher, thermal shock resistance is better, the better. In addition, the organization structure and grain composition shape and other products of corundum brick have effect on the thermal shock resistance.
Refractoriness of fused cast azs block
Zhengzhou Sunrise Refractory Co., Ltd can provide fused cast azs block which have passed the ISO international certified. With reliable quality, competitive price and prompt delivery, Sunrise has established long-term business and cooperation relationship with many customers in different countries and regions. For any further information, Contact us, Sunrise are sincerely looking forward to establishing a long-term mutually beneficial relationship with you.
Concrete
This document provides information on concrete, including:
- Concrete is a mixture of cement, water, and aggregates that hardens over time into a strong building material.
- Proper mixing, placing, and curing of the concrete allows it to gain strength through a process called hydration as it ages.
- Factors like the water-cement ratio, type of aggregates, compaction, and curing affect the properties and strength of hardened concrete.
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Compacting factor test
This document describes the compacting factor test procedure and factors that affect concrete strength.
1. The compacting factor test determines the workability of freshly mixed concrete by comparing the weight of partially and fully compacted concrete in a cylinder.
2. The procedure involves mixing concrete and water/cement, allowing the concrete to fall through hoppers and into a cylinder, where it is weighed in a partially and fully compacted state.
3. The compacting factor is calculated and indicates the consistency/workability, from very dry to high liquid. Factors like relative humidity, water/cement ratio, and temperature affect concrete strength development.
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The document describes conducting a slump test to determine the workability of concrete. A slump test measures the consistency or ability of fresh concrete to flow without segregation. Consistency is expressed by the amount of subsidence or "slump" of a concrete sample when a slump cone is lifted. A higher slump indicates more workable concrete suitable for tasks like beams and slabs, while a lower slump is suitable for road work. The test results will be affected by factors like the water-cement ratio.
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2) Interposing a liquid supporting layer between the resin and mold interior, where the supporting liquid has a higher specific gravity than the resin.
3) Allowing the resin to harden into a rigid shape during spinning.
This process allows producing tubes that are internally smooth with a truly cylindrical shape and uniform wall thickness without needing a mandrel.
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This document discusses various properties of hardened concrete, including its strength and stress-strain behavior. It describes how compressive, tensile, and splitting tensile strengths are measured through standard tests. The compressive strength of concrete is influenced by factors like the water-cement ratio, degree of compaction, cement type, and curing method. The stress-strain curve for concrete is nonlinear, and its modulus of elasticity can be defined using different methods. The document also covers creep and shrinkage in concrete, how they occur over time, and their effects on structural integrity.
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This document provides guidance on making and curing concrete test specimens in the field according to ASTM C 31/C 31M. It describes why test specimens are made, including for acceptance testing of specified strength, checking mixture proportions, and quality control. The key steps covered are: making specimens using molds, consolidating the concrete through rodding and vibration, finishing, initial curing within 48 hours at 16-27°C, final curing by maintaining moisture on the surface at 23°C, and transporting specimens only after 8 hours without jarring or temperature extremes to prevent damage.
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Hello, My name is Saidul Islam. I am a student of Stamford University Bangladesh. It is my varsity presentration. Here halp our course teacher , so I made it too largest. Here you got details in concrete. we are finish those work.
Compacting Factor Test
This document describes procedures for conducting a compacting factor test of concrete. It involves the following steps:
1. Greasing the compacting factor apparatus and weighing the empty cylinder.
2. Mixing concrete with a specific water-cement ratio and filling the upper hopper.
3. Allowing the concrete to fall into the cylinder to achieve partial compaction.
4. Filling and vibrating the cylinder in layers to achieve full compaction and weighing.
5. Calculating the compaction factor using the weights.
Physical properties
The document discusses physical properties that can be used to identify and separate mixtures. It describes viscosity, conductivity, malleability, hardness, melting and boiling points, and density. These properties can help determine which of two unlabeled liquids is water and which is lemonade. They also aid in separating mixtures through filtration and distillation based on particle size and boiling points.
Fresh concrete
The document discusses the properties of fresh concrete, including workability, consistency, and factors that affect them. It defines workability as the effort required to manipulate fresh concrete with minimum segregation. Consistency refers to a concrete's ease of flow and cohesiveness. Tests are described for measuring properties like slump, ball penetration, density, and air content. Maintaining adequate workability and consistency is important for proper transport, placement, compaction and finishing of concrete.
Strength of concrete (for civil engineering)
i have made all the slide for civil engineering and poly diploma civil.
these are 100% correct but in case of some error comment down or contact me on (laxmans227@gmail.com)
follow me for all updates
if u have any doubt fell free to ask on comment section
i upload new slides every sunday,
so keep calm and follow me(now).
software - power point presentation 2015
Inovasi makmal (1)
This document describes procedures for determining the slump of fresh concrete. It discusses how slump is measured to determine the workability of concrete, with higher slumps indicating better workability. The procedures describe how to prepare a concrete mix, fill a slump cone mould, compact the concrete, then measure the amount the concrete subsides after lifting the cone to obtain the slump measurement. Slump is affected by the water-cement ratio, with higher ratios producing higher slumps. The document also gives sample results showing different slumps obtained for different mix proportions.
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Self curing concrete
This document discusses curing of concrete, which involves maintaining moisture content and temperature to allow desired properties to develop. Proper curing increases strength, durability, and resistance to damage. It describes the hydration process where water reacts with cement compounds. A minimum of 38% water by weight of cement is needed for full hydration. Self-curing concrete uses chemicals to retain mixing water and prevent drying. Membrane-forming compounds form films on concrete surfaces that reduce evaporation and allow curing without applied water. Different types of compounds and their application procedures are outlined.
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This test measures the compressive strength of concrete cubes made and cured according to specific standards. It provides a measure of quality control by testing one property, compressive strength, but results can vary depending on test conditions like specimen size and loading rate. The document outlines how to conduct compression tests on concrete cubes to determine if the concrete meets design specifications. Cubes are made, cured, weighed, and tested for compressive strength at various ages to see how strength develops over time. Detailed procedures are provided for casting, curing, operating the compression machine, and analyzing results.
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Compacting factor test
This document describes the compacting factor test procedure and factors that affect concrete strength.
1. The compacting factor test determines the workability of freshly mixed concrete by comparing the weight of partially and fully compacted concrete in a cylinder.
2. The procedure involves mixing concrete and water/cement, allowing the concrete to fall through hoppers and into a cylinder, where it is weighed in a partially and fully compacted state.
3. The compacting factor is calculated and indicates the consistency/workability, from very dry to high liquid. Factors like relative humidity, water/cement ratio, and temperature affect concrete strength development.
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The document discusses density and how it relates to whether an object will sink or float in a liquid. It defines density as mass divided by volume and provides examples of calculating density using measurements of mass and volume. It explains that an object will sink if it has a higher density than the liquid, and float if it has a lower density. Examples are given of stones and glass sinking in water while ice cubes and cork float, and a table lists densities of substances to determine which would float in petrol.
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The document outlines several activities conducted by a group of students exploring composite materials, including testing how adding tissues to water affects how ice breaks, examining everyday objects made of pure and composite materials, and designing and testing foam composites of varying strength and stiffness. It also describes a final project to design a fishing pole and cover a water tank in concrete as a composite material to protect it from sunlight and damage.
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The document describes conducting a slump test to determine the workability of concrete. A slump test measures the consistency or ability of fresh concrete to flow without segregation. Consistency is expressed by the amount of subsidence or "slump" of a concrete sample when a slump cone is lifted. A higher slump indicates more workable concrete suitable for tasks like beams and slabs, while a lower slump is suitable for road work. The test results will be affected by factors like the water-cement ratio.
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This document describes a process for manufacturing hollow axially symmetrical bodies like tubes from synthetic resins. The key steps involve:
1) Spinning a hardenable synthetic resin in liquid/flowable form inside a mold while applying centrifugal force.
2) Interposing a liquid supporting layer between the resin and mold interior, where the supporting liquid has a higher specific gravity than the resin.
3) Allowing the resin to harden into a rigid shape during spinning.
This process allows producing tubes that are internally smooth with a truly cylindrical shape and uniform wall thickness without needing a mandrel.
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This document describes improvements in the manufacture of hollow axially symmetrical bodies such as tubes from synthetic resins. The process involves spinning a hardenable synthetic resin in a mould while interposing an inert liquid supporting layer between the resin and mould interior to prevent adhesion. This allows the production of tubes that are internally smooth with a truly cylindrical shape and uniform wall thickness throughout the length.
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The document discusses different types of matter and mixtures. It defines pure substances as either elements or compounds, which are made of only one type of particle. Elements cannot be broken down further, while compounds are made of two or more elements chemically bonded together. Mixtures maintain the chemical identities of their components and can be separated. Homogeneous mixtures like solutions are uniform throughout, while heterogeneous mixtures have distinct phases. Several processes are described for separating substances based on differences in properties like solubility, boiling point, or mass.
Hardened concrete
This document discusses various properties of hardened concrete, including its strength and stress-strain behavior. It describes how compressive, tensile, and splitting tensile strengths are measured through standard tests. The compressive strength of concrete is influenced by factors like the water-cement ratio, degree of compaction, cement type, and curing method. The stress-strain curve for concrete is nonlinear, and its modulus of elasticity can be defined using different methods. The document also covers creep and shrinkage in concrete, how they occur over time, and their effects on structural integrity.
Making and curing concrete test specimens in the
This document provides guidance on making and curing concrete test specimens in the field according to ASTM C 31/C 31M. It describes why test specimens are made, including for acceptance testing of specified strength, checking mixture proportions, and quality control. The key steps covered are: making specimens using molds, consolidating the concrete through rodding and vibration, finishing, initial curing within 48 hours at 16-27°C, final curing by maintaining moisture on the surface at 23°C, and transporting specimens only after 8 hours without jarring or temperature extremes to prevent damage.
Group 4 (concrete)
Hello, My name is Saidul Islam. I am a student of Stamford University Bangladesh. It is my varsity presentration. Here halp our course teacher , so I made it too largest. Here you got details in concrete. we are finish those work.
Compacting Factor Test
This document describes procedures for conducting a compacting factor test of concrete. It involves the following steps:
1. Greasing the compacting factor apparatus and weighing the empty cylinder.
2. Mixing concrete with a specific water-cement ratio and filling the upper hopper.
3. Allowing the concrete to fall into the cylinder to achieve partial compaction.
4. Filling and vibrating the cylinder in layers to achieve full compaction and weighing.
5. Calculating the compaction factor using the weights.
Physical properties
The document discusses physical properties that can be used to identify and separate mixtures. It describes viscosity, conductivity, malleability, hardness, melting and boiling points, and density. These properties can help determine which of two unlabeled liquids is water and which is lemonade. They also aid in separating mixtures through filtration and distillation based on particle size and boiling points.
Fresh concrete
The document discusses the properties of fresh concrete, including workability, consistency, and factors that affect them. It defines workability as the effort required to manipulate fresh concrete with minimum segregation. Consistency refers to a concrete's ease of flow and cohesiveness. Tests are described for measuring properties like slump, ball penetration, density, and air content. Maintaining adequate workability and consistency is important for proper transport, placement, compaction and finishing of concrete.
Strength of concrete (for civil engineering)
i have made all the slide for civil engineering and poly diploma civil.
these are 100% correct but in case of some error comment down or contact me on (laxmans227@gmail.com)
follow me for all updates
if u have any doubt fell free to ask on comment section
i upload new slides every sunday,
so keep calm and follow me(now).
software - power point presentation 2015
Inovasi makmal (1)
This document describes procedures for determining the slump of fresh concrete. It discusses how slump is measured to determine the workability of concrete, with higher slumps indicating better workability. The procedures describe how to prepare a concrete mix, fill a slump cone mould, compact the concrete, then measure the amount the concrete subsides after lifting the cone to obtain the slump measurement. Slump is affected by the water-cement ratio, with higher ratios producing higher slumps. The document also gives sample results showing different slumps obtained for different mix proportions.
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This document summarizes a seminar presentation on nano concrete. It introduces nanotechnology and how it can improve concrete properties when nano particles are added. Specific nano materials discussed that are used in concrete include carbon nanotubes, nano-silica, and polycarboxylates. The results shown include increased compression strength up to 90MPa in 28 days. The advantages listed are higher strength concrete that uses less additives and cement. Disadvantages include limited availability and means to produce nano materials currently. In conclusion, well dispersed nano particles can increase concrete viscosity, strength, and bond between cement and aggregates.
nanotechnology in civil engineering
Nano technology involves manipulating materials at the nanometer scale to develop new large scale materials with improved properties. In civil engineering, nano technology is being applied to concrete, glass, steel, and coatings to enhance strength, durability, and other qualities. Some applications include using nano silica to strengthen concrete, titanium dioxide to provide self-cleaning and anti-microbial properties to surfaces, and carbon nanotubes to reinforce cement and increase its mechanical properties. Nano technology shows promise for significantly advancing materials used in civil engineering construction and infrastructure.
Nano concrete ppt3
Nano concrete is a type of concrete made with portland cement particles smaller than 500nm as the binding agent. Adding nano materials like carbon nanotubes, nano-silica, and polycarboxylates can improve properties of conventional concrete such as increasing compressive strength, reducing water needs, and improving workability. Nano concrete produces stronger, more durable concrete and reduces environmental impact by requiring less cement and additives.
Use of Waste Materials As a replacement of Coarse Aggregate in Concrete Mix
The document discusses the use of waste materials in concrete. It outlines the objectives of reducing waste and finding alternative materials for construction. Three waste materials are examined: e-waste, rubber tire waste, and coconut shell waste. Their properties like water absorption and specific gravity are tested. Previous research on using these wastes in concrete is summarized. Experiments are described to determine properties of materials. A concrete mix design is provided with the goal of achieving 25MPa compressive strength. The document aims to explore sustainable and economical use of waste in construction materials.
Nanotechnology In Civil Engineering
Nanotechnology offers possibilities to improve materials used in civil engineering. At the nanoscale, materials demonstrate new properties. Concrete can be made stronger and more durable using nano-silica and carbon nanotubes. Steel can incorporate nanoparticles to increase strength and resistance to fatigue and corrosion. Titanium dioxide and carbon nanotubes make glass self-cleaning. Nanoparticles in coatings provide insulation and hydrophobicity. While costs are currently high, nanotechnology research aims to advance sustainability in the construction industry by developing higher performance, longer lasting materials.
fly ash and rubber in concrete ( eco-friendly concrete)
This study investigated the effects of partially replacing cement with fly ash and coarse aggregate with rubber chips in concrete. Concrete mixtures were prepared with 0%, 10%, and 20% fly ash replacement of cement and 5% rubber chip replacement of coarse aggregate. Fresh and hardened properties were tested. Test results found that 5% rubber replacement slightly reduced compressive strength compared to normal concrete. However, increasing fly ash content from 10% to 20% improved mechanical properties of the rubberized concrete. Therefore, partial replacement of cement with fly ash and coarse aggregate with rubber chips has potential to produce concrete with comparable strength to normal concrete while utilizing waste materials.
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Use of Waste Materials As a replacement of Coarse Aggregate in Concrete Mix
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- 7. Samples Cement water Salt Sugar A 200g 100ml …………………… ………………… B 200g 100ml 6g ………………… C 200g 100ml …………………….. 3g
- 8. Result : Samples Temperature Hardening Conclusion A It increased and then decreased, then constant. Quickly ……….. B It Increased and then decreased, then constant. Faster The salt acting as positive catalyst. C The temperature dropped and then remained constant. very slow The sugar was acting as negative catalyst
- 9. Comparing densities of mixed aggregate at samples المختلط الركام من كثافة وبمقارنة العينات في
- 10. Samples Cement Fine aggregate Gravel water A 200g 0 0 90ml E 60g 120g 120g 33ml E with Reinforcement 60g 120g 120g 33ml
- 12. Result : samples Densities Hardening Water A Small density So weak Break without water E Average density Weak Break with adding water 2.1 Kg E.R the bigger density The strongest Break with adding 7.4 Kg
- 13. Gravel 100g Sand 100g Sand 50g+ Gravel 50g The volume is medium Highest volume The volume is the lowest 3 Graduated cylinders
- 14. Casting molds and broken صبكسرها و القوالب
- 17. Product Idea
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