Chemical Admixtures - Cement
Chemical Admixtures. Chemical admixtures are the ingredients in concrete other than portland cement, water, and aggregate that are added to the mix immediately before or during mixing. Producers use admixtures primarily to reduce the cost of concrete construction; to modify the properties of hardened concrete; to ensure the quality of concrete
Concrete Plasticizers, Cement & Plastic Fillers | USG
Builders and project managers count on USG’s selection of concrete plasticizers and cement plasticizers to strengthen their structures. Our concrete plasticizer products reduce the water/cement ratio to achieve better results. View our plasticizer admixture for concrete and other offerings below. 5 results CAS-20-4 Calcium Sulfate Filler
Cement saturation and the effect on stability and compressive
considered, the most suitable water – cement ratio is 0.55 based on stability and compressive strength. Keywords: Cement, Compressive Strength, Concrete, Mix – ratio, Stability, Water – Cement ratio. 1. INTRODUCTION Concrete is composed of the mixture of water, cement, fine and coarse aggregates and these can be
Superplasticizer
Superplasticizers ( SPs ), also known as high range water reducers, are additives used in making high strength concrete. Plasticizers are chemical compounds that enable the production of concrete with approximately 15% less water content. Superplasticizers allow reduction in water content by 30% or more.
STUDY OF CONCRETE WITH VARIOUS TYPES OF PLASTICIZERS AND
water-cement ratio moves within 0.25 to 0.8. Practical value of common concrete water-cement ratio moves within 0.35 to 0.60 depending on type and effect of added plasticizers or superplasticizers and required consistency of fresh concrete. Low water-cement ratios that may get under 0.25 is use
- Do Plasticizers improve the strength of concrete?
- The use of plasticizers generally improves the physical and structural properties of concrete, as well as increasing the profitability of the project; We have learned from experiences that the results have been positive with respect to the compressive strength of concrete.
- Which plasticizer is best for concrete?
- Polycarboxylate ether (PCE) – PCEs are high range water reducers that provide increased early and late strength. They allow low water-cement ratios. Sulfonated vinyl copolymers – These versatile plasticizers work well across different types of concrete mixes and temperature conditions.
- What are the advantages and disadvantages of plasticizers?
- The main advantages of using plasticizers are: Improves workability of concrete without the addition of extra water. Improves the strength of concrete without increasing the cement content. Increase the strength characteristics of the finished concrete foundation by twenty five percent.
- What is a hydrophilic plasticizer?
- The primary purpose of hydrophilic plasticizers is to improve the concrete’s plastic and flow properties, as evidenced by their increased wet ability. This plasticizer makes a lot of air get into the concrete mix. It is possible to lower the tension of the water in the solution and make the concrete more flexible.
- What makes a good plasticizer?
- A good plasticizer makes concrete or mortar flow in a way that is different from how an air-entraining agent does it. But some plasticizers also add air to the material, making it easier to work. A good plasticizer should add 1% to 2% of the air to concrete at most because adding air to concrete makes it less strong.
- Do plasticizers increase mechanical strength?
- Plasticizers are used as reducers to reduce the water content to improve the physical properties of concrete. From which it was possible to demonstrate very favorable results from water reducers (plasticizers) that increase mechanical strength when these additives are used in sufficient proportion.
