The Study On Performance Of Cementious Materials Reducing Agent

Concrete to reduce glue is most of a new generation of concrete admixture,can better improve the performance of concrete,reduce less unilateral dosage of the cementing materials in concrete. On the basis of the mineral water to add and subtract, minus glue to better play its reduce the performance of the adhesive.Based on the detection of concrete mixing and subtract glue performance test,the study reduce glue influence on concrete workability and durability,at the same time,through new mix water slurry particle size analysis,analysis of glue and glue reduction principle,thought to reduce glue can be further opened the flocculation structure,promote the cement hydration. Results show that reduction of glue can improve the workability of the new concrete mixture,28 days compressive strength can be increased by 18%. Less glue type â…  â…¡-Minus slightly late compressive strength glue, but the gap is not very big. Less glue glue maximum reduction rate of about 10.5% type â… , type â…¡ about minus minus glue glue was 14.2%, â…¡ type glue better than the minus minus minus glue glue effect â…  type, but the amount of Less than â…° type glue slightly larger.In terms of type â…  reduced compressive strength glue three days maximum difference of 18% compressive strength, compressive strength 7 days maximum difference 17%, â…¡-Minus glue three days maximum difference of 11%compressive strength, compressive strength 7 days the maximum difference of16%; minus two types of glue glue maximum reduction rate of the corresponding three days strength were 16.1 MPa and 15.2 MPa, 7-day strength was 20.6 MPa and 19.8 MPa, â…¡ type less than the compressive strength of glue Less glue type â… slightly smaller, but with less glue content changes, â…¡ type of concrete compressive strength less stable than glue type â… .