Concrete with synergist and preparation method thereof

Abstract

The invention provides a synergist-containing concrete, which is made of the following raw materials in weight percentage: 10-20% of cement, 25-30% of fly ash, 6-9% of silica fume, and 0.1-0.2% of synergist , the first part of water 4‑6%, coarse aggregate 10‑25%, fine aggregate 10‑25%, water reducing agent 1‑2.5%; synergist is made of the following raw materials by weight: triethanolamine 20‑ 35 parts, 1‑5 parts of sodium tripolyphosphate, 2‑4 parts of tetraethylenepentamine, 2‑3 parts of sodium tungstate, 5‑10 parts of sodium pyrophosphate, 5‑15 parts of allylamine, the second part of water 20‑25 servings. The raw materials of the present invention cooperate with each other to obtain a synergist-containing concrete that reduces the amount of cement, reduces the cost, and ensures that the concrete has better working performance and mechanical performance.

Description

technical field [0001] The invention belongs to the technical field of concrete building materials, and more specifically relates to a synergist-containing concrete and a preparation method thereof. Background technique [0002] Concrete is currently the most used building material. In the actual production process, in order to ensure the quality of concrete, concrete companies and users dare not reduce the amount of cement without authorization. Instead, they increase the strength of concrete by reducing the water-binder ratio. In addition, during the concrete forming process, nearly 20% of the cement is not fully hydrated, which not only causes a waste of resources, but also keeps the cost of concrete high, bringing huge economic pressure to users and concrete companies. [0003] In the traditional method, commercial concrete enterprises mainly use fly ash, silica fume and other mineral admixtures to replace part of the cement. Although the construction performance is impr...

AI Technical Summary

Problems solved by technology

In addition, during the concrete molding process, nearly 20% of the cement is not fully hydrated, which not only causes waste of resources, but also keeps the cost of concrete high, bringing huge economic pressure to users and concrete companies

[0003] In the traditional method, commercial concrete enterprises mainly use fly ash, silica fume and other mineral admixtures to replace part of the cement. Although the construction performance is improved to a certain extent and the cost is reduced, the traditional method reduces the amount of cement. To ensure the quality of concrete, with the increase in the price of concrete materials and the proposal of the national sustainable development strategy, it is necessary to use a green and efficient admixture with fly ash, silica fume and other mineral admixtures to achieve sufficient water content of cement in concrete. greatly improve the performance of concrete with a small reduction in the amount of cement

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