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Questions about civil engineering materials

Questions about civil engineering materials

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First, with excellent adhesion, construction, anti-droop, so that the formation of waterproof between the continuum; second, with good flexibility, can withstand structural parts due to temperature, humidity, wind, earthquake And so on caused by the seam deformation; Third, with weather resistance, water resistance, long-term outdoor sunshine, rain, snow and summer heat and other conditions under the effect of maintaining long-term adhesion and tensile compression performance.
Elimination of concrete structural damage factors: In addition to environmental factors caused by the destruction of concrete structure, the concrete itself, some physical and chemical factors, may also cause serious damage to the concrete structure, resulting in concrete failure. Fourth, to ensure the strength of concrete High-performance concrete in the preparation of the characteristics of low water-cement ratio, the choice of high-quality raw materials, in addition to cement, water and aggregate, must be mixed with a sufficient amount of mineral aggregates and superplasticizer, The amount of concrete to reduce the internal porosity, reduce volume shrinkage, improve strength and improve durability.
Incorporation of highly efficient active mineral admixtures
Slag cement clinker content is less than the portland cement, and the mixture at room temperature hydration reaction is relatively slow. Condensation hardening is slower. Early (3 days, 7 days) low strength, but in the late hardening (28 days later) due to increased hydration products to increase the strength of cement stone, and finally even more than the same standard ordinary cement. Slag cemen

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