LIGHT WEIGHT FILLER BOROLITE
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light weight filler based on soda-lime borosilicate - microspheres are white, light weight /high strength hollow glass microspheres, used as alternatives to conventional fillers in a variety of paints and specialty coatings, spalcking, caulks, adhesives, roof coating and more.They are used to provide a better surface for sanding and allows a higher filler loading.The effect of trapped air further improves the insulation properties.
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The document discusses the CO2 casting process. In this process, CO2 gas is used to harden sand molds. When CO2 gas comes into contact with sodium silicate in the sand mixture, it forms a stiff gel that strengthens the mold. The CO2 is forced into the packed mold at pressure. This process produces dimensionally accurate castings with a fine surface finish more quickly than green sand casting. However, it is not as economical. The molds also cannot be easily reclaimed.
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The document provides an overview of the cement production process and factors that influence quality. It discusses:
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3. Different cement types produced for various applications and how additives like gypsum and fly ash affect the physical properties.
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The document discusses the various steps involved in the casting process including making patterns and cores, making molds, melting and pouring metal, and finishing processes. It describes different types of patterns such as loose patterns, gated patterns, and cope and drag patterns. It also discusses various molding methods like green sand molding, dry sand molding, and loam sand molding. Key mold properties like strength, permeability, and refractory nature are explained. Methods of testing mold properties like clay content, moisture content, and permeability are also summarized.
Expandable Pattern Casting and Plaster Mold Casting
Expandable pattern casting and plaster mold casting are two types of expendable mold casting processes. Expandable pattern casting uses an expandable polystyrene pattern that is coated, embedded in sand in a flask, and then vaporized when molten metal is poured, leaving an exact replica of the pattern. Plaster mold casting similarly uses a plaster mold instead of sand and is best for smaller, non-ferrous metal castings due to temperature limitations of plaster. Both methods can produce complex, close-tolerance castings with minimal finishing required.
Treatments to Improve Concrete Performance - AIA
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Glass has been manufactured in New Zealand for over 100 years and is commonly used in windows, bottles, jars, and other household items. It is produced through a two-step process of batch mixing and melting where ingredients such as silica, sodium carbonate, and calcium carbonate are heated to high temperatures to form molten glass, which is then shaped for different applications such as plate glass or molded containers. Glass is durable, safe when strengthened through processes like toughening or lamination, can provide fire resistance, and is readily recycled from old materials.
Report on shell molding
This seminar report discusses shell molding, also known as shell mold casting. Some key points:
1) Shell molding uses a resin-covered sand to form molds for casting small to medium metal parts, providing better dimensional accuracy and productivity than sand casting.
2) The process involves creating a pattern, applying a heated sand-resin mixture to form a shell around the pattern, curing the shell, assembling two shell halves, and pouring molten metal to form the casting.
3) Shell molding allows casting of both ferrous and non-ferrous metals for parts requiring precision, such as gear housings and cylinder heads.
4) The sand used is finer
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This document discusses two types of amorphous calcium aluminate cement, CALUMEX SC-A and XT-20. They consist of calcium oxide and aluminum oxide in a 12:7 mole ratio, forming the main phase 12CaO.7Al2O3. They have a high dissolution rate and are highly reactive due to their amorphous content over 95% and fine particle size. As a partial replacement for Portland cement, they can accelerate setting, increase early and late strength, provide dimensional stability, quick drying, and reduce efflorescence. They are used in cement, mortar, tile adhesives, and other applications where rapid setting is required. Regular and special admixtures can be used
METHYL CELLULOSE
Cellulose is one of the first found and used polymers.Through chemical modification alkalization and etherification, side groups are incorporated onto the main polymer chain.
Cellulose ether is through neutralization, purification, drying, crushing, blending and sieving diversified in different types;MC, HEC, CMC, HPMC, HEMC, etc.
Re-dispersible polymer powder
Re-dispersible polymer powder is obtained by spray-drying a polymer emulsion normally with a PVA as protective colloid.
When added f.i. in a cement or cement mortar when mixed with water it is dispersed to form an emulsion again.
Addition of a polymer in either emulsion or as re-dispersible latex to a dry-mix mortar is further improve its properties.
Amorphous Calcium Aluminate Cement (ACA)_RAPID SET CEMENT
Amorphous Calcium Aluminate Cement (ACA) is on of the latest developments in cement chemistry. There is not a lot published on this subject so therefor this blog.
Main phase is C12A7 (mayenite) a most reactive phase in cement hydration.
Amorphous calcium aluminate can be used as an additive in cementitious compositions as an accelerating agent to Portlandcement.Other features are rapid drying and compensation of shrinkage through positive expansion.
Calumex 3 DP
CALUMEX 3DP is a cement additive developed for 3D concrete printing. It improves the characteristics of concrete by making it easy to handle, dry and set quickly, and gain strength rapidly. It also enhances flow properties and extrudability. By accelerating cement hydration and modifying rheology, CALUMEX 3DP facilitates fast manufacturing of concrete structures without formwork.
METACAL 3000 meta kaoline
The document discusses kaolin and metakaolin, including their production, properties, and uses in cement and concrete. Metakaolin is produced by calcining kaolin to produce an amorphous aluminosilicate powder that can be used as a supplementary cementitious material. When combined with Portland cement, metakaolin reacts pozzolanically to improve strength, density, and durability of concrete. Flash calcination allows higher dosages of metakaolin in concrete mixes compared to traditional calcination methods.
CALUMEX ULTRA PERFORMANCE CEMENT
BASED ON MOIFIED PORTLANDCEMENT - extreme fast strength development - high early and late strengths - can bear full load within 6 hours !
AMORPHOUS CALCIUM ALUMINATE
Amorphous Calcium Aluminate (ACA) cement accelerants provide advantages to producers such as very fast setting, notable early and late strength gain, and a white color making them ideal for light castings. The main phase is C12A7 (mayenite) and increased sulfate leads to early ettringite crystal formation in a Portland cement matrix, resulting in extremely high early strengths. ACA cements develop strength similarly to Calcium Sulfoaluminate cements through early ettringite formation. Depending on the loading amount, ACA cements provide faster setting, rapid hardening, drying, and high early and late strength gains even in colder weather.
CALUMEX ULTRA PERFORMANCE CEMENT
ultra rapid and high early strength cement - used as DOT CEMENT for road work repair and airport maintenance
Ultracem Supercement tds
ULTRACEM® is a fast setting Portland cement that achieves high early strength within 3 hours and compressive strength of over 10 MPa. It sets within 3-5 minutes and contains less than 5% loss of ignition and 8% sulfate. ULTRACEM® can be used in dry-mixed mortars and concrete where quick re-installation is required, such as in low temperature environments and for rapid repair work. Safety precautions should be followed when using ULTRACEM® due to its fast setting properties.
CALUMEX TRX
This document discusses a new additive that can be used to prevent cracks and curling in cement and lime mortars by compensating for shrinkage in three ways: 1) through the formation of hydrogen gas, 2) through the formation of calcium aluminum sulfate hydroxide which compensates for chemical shrinkage, 3) at a rate of 1-5% by weight. The additive is packaged in 20kg plastic bags or 1,250kg big-bags and can be stored in a cool, dry place for up to 6 months after production date. It can be used in cement screeds, self-leveling underlayment, tile adhesive, non-shrink grout, and monocouche mixtures (cement/
Aesthetic calumex
CALIGHT 70 is an extreme white calcium aluminate cement produced through sintering high quality alumina and lime. It is used as a straight binder or addition to white Portland cement in dry mortars. Calcium sulfate can be added to reduce shrinkage, accelerate drying, and increase density. Key benefits include extreme whiteness, ease of coloring, no efflorescence, durable color, high early strength, and improved abrasive resistance.
ECO-PERLA - revolutionary development in paint
Ettringite is a calcium aluminum sulfate mineral that forms in alkaline conditions through chemical reactions between aluminum, calcium, and sulfate. It has a stable hexagonal crystal structure and very low solubility. ECO-PERLA paint is made from a synthetic ettringite and provides extreme whiteness, opacity, adhesion, and environmental friendliness for uses like walls, paper, and adhesives. It contains no irritants, preservatives, or volatile organic compounds.
Calight 70 f
This document provides information about Caltra's cement products and castable refractories. It includes:
1. An introduction and overview of Caltra's product development, quality control processes, and product offerings.
2. Details on Caltra's main cement product, CAC-70F, including its chemical composition and physical properties compared to other cements. Test data shows CAC-70F performs well.
3. Information on castable formulations using different cements, water-cement ratios, and additives, along with corresponding test results for properties like strength and permeability. CAC-70F-containing castables demonstrate good high-temperature resistance.
CEMENT in Ternary system
sustainable , robust cementious binder by blending Portlandcement calcium sulphate and calcium sulpho aluminate cement
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The document discusses the production and properties of metakaolin, which is produced by calcining kaolin clay. Kaolin clay consists of the aluminum silicate mineral kaolinite. Metakaolin is produced through either flash calcination at temperatures around 670°C for a few seconds, or rotary kiln calcination at 750°C for 2-5 hours, which results in amorphous metakaolin with different particle morphologies depending on the production method. Metakaolin has pozzolanic properties and reacts with calcium hydroxide in cement to form additional calcium silicate hydrates, improving the strength and durability of concrete.
BeliCem - high belite CSA CEMENT_2015 hr
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walkon time ~4hours at 20 degrees ambient temperature
AESTHETIC CALUMEX
CALIGHT 70 is an extreme white calcium aluminate cement produced through sintering high quality alumina and lime. It is used as a straight binder or added to white Portland cement in dry mortars. Calcium sulfate can be added to reduce shrinkage, accelerate drying, and increase density. It is suitable for white or colored floor levelers, marble adhesives, and tile grouts as the amount of lime released during hydration is negligible. Key benefits include extreme whiteness, ease of coloring, no efflorescence, durable color, high resistance in aggressive environments, and high early strength. CALTRA is an independent producer of special binders that offers services and a wide range of products to the construction industry
ALUMINATE CEMENTS COMPARED IN A TERNARY SYSTEM
This document discusses the development of a ternary cement system using calcium aluminate, calcium sulfate, and Portland cement to achieve fast setting, high early strength, and shrinkage compensation. Testing of mortars made with different calcium aluminate sources showed that calcium sulphoaluminate (CSA) cement produced the fastest setting and highest compressive strength at early ages. While amorphous calcium aluminate (ACA) cement produced results comparable to CSA at later ages even when used at half the dosage, with little effect on setting time. The optimal ternary blend forms ettringite crystals that provide high initial strength and positive expansion to allow working at low temperatures.
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【业务选择办理准则】
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LIGHT WEIGHT FILLER BOROLITE
- 2. GB microspheres are white, light weight /high strength hollow glass microspheres, used as alternatives to conventional fillers in a variety of paints and specialty coatings, spalcking, caulks, adhesives, roof coating and more. They are used to provide a better surface for sanding and allows a higher filler loading. The effect of trapped air further improves the insulation properties.
- 3. glass microspheres are produced at high temperature based on a mixture of soda , lime and borosilicate. The obtained glass is milled and mixed with sodium-sulfate, after which the mixture is run through a high temperature heat transfer process whereby the viscosity of the glass drops and the surface tension causes the particles to form perfect round shaped spheres. Continued heating activates the blowing agent, releasing a small amounts of sulfur gas that form bubbles within the molten glass droplets. The result are low density, rigid, hollow spheres with an increased crush resistance, withstanding external pressure and avoiding fracture of the bubble
- 4. • soda-lime borosilicate glass microspheres • non porous , better stability at reduced cost • hollow,single-cellular sphere • round shape , improved workability • light weight , lower viscosity • whiteness • improved abrasion resistance , better sanding • reduce shrinkage • chemically stable , water resistant • high thermal insulation
- 5. GB20 GB32 GB40 GB60 size µ 2-120 2 - 92 2 - 75 2 - 65 D50 70 47 38 30 true density g/cm3 0,2 0,32 0,4 0,6 crush resistance Mpa 4 14 28 69 floating typical 96 95 95 94 oil absorption oil/cm3 0,2 - 0,65 0,2 - 0,65 0,2 - 0,65 0,2 - 0,65 melting point °C 625 625 625 625 pH 8 - 9,5 8 - 9,5 8 - 9,5 8 - 9,5 thermal conductivity W.m-1.K-1 at 20°C 0,0503 0,0535 0,0654 0,0934
- 6. • no post thickening • reduction of shrinkage • less cracking and thicker coats • less sagging • easy to apply • reduced drying time (less water needed) • weight reduction • easy sanding • extreme whiteness • improved insulation jointing compounds spray plaster paints in/outdoor filler
- 7. • reduction of shrinkage • less cracking and thicker coats • less sagging • easy to apply • reduced drying time (less water needed) • weight reduction • easy sanding • extreme whiteness crack filler (in/outdoor) jointing compounds repair mortar cement tile-adhesive
- 8. • resistance to thermal shocks and impact • weight reduction • economical resin + fillers
- 9. • plastic bag in carton box H20 10 kg H32 15 kg H40 20 kg H60 30 kg • Big-bag
- 10. size cm GB20 GB32 GB40 GB60 kg kg kg kg Carton Box 24 box p/pal 42x42x52 10 15 20 30 box weight 2 kg Big-Bag 1 p/pal 89x89x220 200 420 500 800 big-bag weight 3,5 kg number kg kg kg kg 20" container 260 2600 3900 5200 7800 40" container 560 5600 8400 11200 16800 40"HQ container 695 7000 10500 13900 21000