Polymer concrete is a composite material made by impregnating a conventional concrete with monomers like methyl methacrylate or styrene, then polymerizing them to fill its pores and voids. This reduces porosity and improves strength and durability properties. Three main types are polymer impregnated concrete, polymer cement concrete, and polymer concrete. Polymer impregnated concrete uses precast concrete impregnated with monomer then polymerized. It exhibits higher strength, stiffness, and durability compared to conventional concrete.
Hello readers,
In this presentation, I am sharing Fiber Reinforced Concrete.
The following parameters are discussed in the presentation:
History.
Why Fibers are used?
Type of fibers.
Mechanical properties of FRC.
Factors affecting properties of FRC.
Advantages and Disadvantages of FRC.
Applications of FRC.
Hello readers,
In this presentation, I am sharing Fiber Reinforced Concrete.
The following parameters are discussed in the presentation:
History.
Why Fibers are used?
Type of fibers.
Mechanical properties of FRC.
Factors affecting properties of FRC.
Advantages and Disadvantages of FRC.
Applications of FRC.
Concrete
The word concrete comes from the Latin word "concretus". Which means compact.Now a days concrete is most common and necessary things in our life.
The history of cementing materials together goes back to the time when prehistoric man prepare his cave to build shelter.
He used mud and clay to fill the gap between stone. To keep out the wind and cold.
Later the Assyrians and Babylonians used clay as their bonding substance and straw to make a shape.
The Egyptians used lime and gypsum and crushed stone to create a material that would harden even better.
Here, I attach a PowerPoint presentation created by me for a competition held by UltraTech. Have a look at this and feel free to share your views with me.
what is polymer concrete, types, properties, material used in manufacturing process , manufacturing process, applications and their advantages. case study on polymer composite concrete.
High volume fly ash concrete is a concrete where a replacement of about 35% or more of cement is made with the usage of fly ash.
Fly ash concrete is an eco-friendly construction material in which fly ash replaces a part of Portland cement.
Concrete
The word concrete comes from the Latin word "concretus". Which means compact.Now a days concrete is most common and necessary things in our life.
The history of cementing materials together goes back to the time when prehistoric man prepare his cave to build shelter.
He used mud and clay to fill the gap between stone. To keep out the wind and cold.
Later the Assyrians and Babylonians used clay as their bonding substance and straw to make a shape.
The Egyptians used lime and gypsum and crushed stone to create a material that would harden even better.
Here, I attach a PowerPoint presentation created by me for a competition held by UltraTech. Have a look at this and feel free to share your views with me.
what is polymer concrete, types, properties, material used in manufacturing process , manufacturing process, applications and their advantages. case study on polymer composite concrete.
High volume fly ash concrete is a concrete where a replacement of about 35% or more of cement is made with the usage of fly ash.
Fly ash concrete is an eco-friendly construction material in which fly ash replaces a part of Portland cement.
To Study the Effect of Silica Fume on Properties of Macro Polypropylene Blend...ijsrd.com
This paper represents the research initialization towards the fresh and hardened properties of macro polypropylene blended fiber reinforced concrete using Silica Fume. In this study polypropylene fiber are used with 0%, 0.15%, 0.30%, 0.60% and 1.0% by weight of cement and Silica Fume with percentage of 0%, 5%, 7.5% and 10% which are replaced with cement for M30 grade concrete. All of the mixes are tasted with the compressive strength test and flexural strength test for 7 days 28 days. Durability test is also carried out for 56 days. The results from all of the tests are to be compared with control concrete mix.
STUDY OF STRENGTH PROPERTIES OF POLYESTER FIBRE REINFORCED CONCRETEJournal For Research
Fiber Reinforced Concrete" is relatively a new construction material developed through extensive research and development work during the last two decades. Fiber Reinforced Concrete (FRC) is defined as composite material which consists of conventional concrete reinforced by randomly dispersed short length fibers of specific geometry, made of steel, synthetic (polymeric) or natural fibers. Plain cement concrete has very low tensile strength and causes formation of micro cracks in stressed and unstressed states of concrete. Also, it has a low strain at fracture and brittleness with less ductility especially in case of High Performance Concrete. Fiber Reinforced Concrete is the answer to modify these properties of Plain Concrete. The recent development of Secondary reinforcement in Concrete in various fields has provided a strong technical base for improving the quality of the material. To overcome the deficiencies fibers are used as secondary reinforcement. FRC is Portland cement concrete reinforced with more or less randomly distributed fibers. The choice of fibers varies from synthetic organic materials such as polypropylene or carbon, synthetic inorganic such as steel or polyster, natural organic such as cellulose or sisal to natural inorganic asbestos. The interaction between the fiber and concrete matrix is the fundamental property that affects the performance of a cement based fiber composite materials. An understanding of this interaction is needed for forecasting the fiber contribution and for predicting the behavior of such composites. In present investigation concrete with addition of polyester fiber Recron 3s at various at dosages of 0.25%, 0.50%, 0.75% and 1.00% by weight of cement in the mix design is studied to find the optimum dosage of Polyster fiber for concrete.
Analysis of Characteristics Behaviour use of Locally Materials in Highway Sub...ijtsrd
Concrete is strong in compression but weak in tension and brittle also. Cracks also start forming as soon as the concrete is placed. These above said drawbacks don't permit the use of normal concrete in pavements as they lead to a lack of ductility along with fracture and failure. These weaknesses in concrete can be mitigated by using fibers as reinforcement in the concrete mix. Waste materials in the form of polyethylene and tires cause environmental pollution which leads to various health problems. Polyethylene and waste tires can be reused and used efficiently in the concrete as reinforcement in the fiber form. Polyethylene is a synthetic hydrocarbon polymer which can improve the ductility, strength, shrinkage characteristics. This study deals with the effects of addition of polyethylene fiber on the properties of concrete. In this study, Polyethylene and tire fibers were cut into the size of 25mm x 8mm and they were used 1.5 each by volume. Grades of concrete used were M 30, M 35 and M 40. IRC 44 2008 was followed for the design of concrete mix. In this study, the results of the strength properties of Polyethylene fiber reinforced concrete have been presented. Four point bending and double shear test were performed in the laboratory for flexure and shear strength determinations. There was seen an increase of 18 in the 28 day compressive strength along with an increase of 39 in flexure Strenght and 32 in shear strength. It is also found that 22 reduction in the four point bending test and 36 reduction in deflection by double shear tests were initiated out from the experiments. Theoretical analysis of deflection was carried out with the help of energy methods. Practical values were verified with the theoretical values within the allowable limits. Finally, it is concluded that polyethylene and tire used efficiently in reinforced cement concrete. Amit Kumar Bhobria | Er Nitin Thakur "Analysis of Characteristics Behaviour use of Locally Materials in Highway Subgrade" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-1 , December 2019, URL: https://www.ijtsrd.com/papers/ijtsrd29872.pdf Paper URL: https://www.ijtsrd.com/engineering/civil-engineering/29872/analysis-of-characteristics-behaviour-use-of-locally-materials-in-highway-subgrade/amit-kumar-bhobria
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
KuberTENes Birthday Bash Guadalajara - K8sGPT first impressionsVictor Morales
K8sGPT is a tool that analyzes and diagnoses Kubernetes clusters. This presentation was used to share the requirements and dependencies to deploy K8sGPT in a local environment.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
8. Polymer Concrete
The porosity due to air-voids, water voids or due to the inherent porosity of gel
structure itself. On account of the porosity, the strength of concrete is naturally
reduced. It is conceived by many research workers that reduction of porosity results
in increase of strength of concrete.
Therefore, process like vibration, pressure application spinning etc., have been
practiced mainly to reduce porosity.
All these methods have been found to be helpful to a great extent, but none of
these methods could really help to reduce the water voids and the inherent porosity
of gel, which is estimated to be about 28%. The impregnation of monomer and
subsequent polymerization is the latest technique adopted to reduce the inherent
porosity of the concrete,
to improve the strength and other properties of concrete
9.
10. 1. Polymer Impregnated Concrete (PIC).
2. Polymer Cement Concrete (PCC).
3. Polymer Concrete (PC).
Type of Polymer Concrete
11. Polymer impregnated concrete is one of the widely used
polymer composite.
It is nothing but a precast conventional concrete, cured and
dried in oven, or by dielectric heating from which the air in
the open cell is removed by vacuum.
Then a low viscosity monomer is diffused through the open
cell and polymerized by using radiation, application of heat
or by chemical initiation
Polymer Impregnated Concrete (PIC)
16. Polymer cement concrete is made by mixing cement,
aggregates, water and monomer.
Such plastic mixture is cast in moulds, cured, dried and
polymerized. The monomers that are
used in PCC are:
(a) Polyster-styrene.
(b) Epoxy-styrene.
(c) Furans.
(d) Vinylidene Chloride.
Polymer Cement Concrete (PCC)
17. Polymer concrete is an aggregate bound with a polymer binder instead of Portland
cement as in conventional concrete. The main technique in producing PC is to
minimize void volume in the aggregate mass so as to reduce the quantity of polymer
needed for binding the aggregates.
This is achieved by properly grading and mixing the aggregates to attain the
maximum density and minimum void volume.
The graded aggregates are prepacked and vibrated in a moulds. Monomer is then
diffused up through the aggregates and polymerization is initiated by radiation or
chemical means.
A Silone coupling agent is added to the monomer to improve the bond strength
between the polymer and the aggregate. In case polyester resins are used no
polymerization is required.
Polymer Concrete (PC)
20. PIC has a nearly linear stress-strain relationship to failure. There is very little departure from
linearity up to 90% of ultimate strength and there is no abrupt change at the
proportional limit. The stress strain curves for Styrene-TMPTMA impregnated concrete also show
the same characteristics as for MMA impregnated concrete. The modulus of elasticity increased
from 27 GPa for impregnated specimen to 49 GPa for MMA impregnated specimens.
Stress-Strain Relationship
21.
22.
23. The effect of polymer loading on the compressive strength in PIC Using methyl methacrylate as
monomer and with a polymer loading of 6.4%, strength of the order of 144 Mpa (thermal
catalytic process was 130 Mpa) have been obtained using radiation technique of polymerization.
The control specimen had compressive strength of 38 MPa
Compressive Strength & Tensile
Strength
24.
25.
26. Polymer impregnated concrete with polymer loading of 5.6% MMA and polymerized by
radiation have shown flexural strength 3.6 times more than that of the control specimen, i.e.
the flexural strength was increased to 18.8 MPa from 5.2 MPa.
Compressive Creep deformation of MMA impregnated concrete and styrene—
impregnated concrete has been observed to be in direction opposite to that of the applied
load i.e., Negative Creep. After the typical initial movement during load application, these
concretes expand under sustained compression
Flexural Strength & Creep
27.
28. Freeze Thaw Resistance
Polymer impregnated concrete has shown excellent resistance to freeze-thaw MMA impregnated
and radiation polymerized specimens have withstood 8110 cycles of freeze-thaw compared to
740 cycles in case of unimpregnated concrete. Even partially impregnated concrete withstood
2310 cycles.
Resistance to Sulphate Attack
it has been observed that there is at least 200% improvement in the resistance of polymer
impregnated concrete and 89% improvement in the case of partially impregnated concrete
over the conventional concrete.
Durability
29.
30. Acid Resistance
The acid resistance of PIC has been observed to improve by 1200% when exposed to 15% HCI
for 1395 days.
Water Absorption
A maximum reduction of 95% in water absorption has been observed with
concrete containing 5.9% polymer loading
Durability
Editor's Notes
Styrene, also known as vinyl benzene and phenyl ethene, is an organic compound with the chemical formula C6H5CH=CH2. This derivative of benzene is a colorless oily liquid that evaporates easily and has a sweet smell, although high concentrations confer a less pleasant odor. Styrene is the precursor to polystyrene and several copolymers. Approximately 25 million tons (55 billion pounds) of styrene was produced in 2010.[1]Acrylonitrile is a chemical compound with the formula C3H3N. This colorless liquid often appears yellow due to impurities. It is an important monomer for the manufacture of useful plastics such as polyacrylonitrile. In terms of its molecular structure, it consists of a vinyl group linked to a nitrile.