Efficient environment-friendly concrete preservative

Abstract

The invention relates to an efficient environment-friendly concrete preservative, which comprises the following components in portion by weight: 10 to 18 portions of various benzoic acids and boric acids, 20 to 40 portions of silica fume, 20 to 35 portions of alkalis; 35 to 50 portions of ethanolamine, and 15 to 20 portions of active components. The preservative can be widely applied to various building materials, especially to concrete and cement, and is reliable in rust prevention and corrosion resistance and good in environmental indexes. The preservative has the advantages of containing no mineral oil, containing no nitrite, chromate and the like harmful to human body, adapting to compressive strength (50 MPa in general) of actual requirements, improving strength, durability and heat resistance and meeting the requirements for high-performance concrete, along with no toxicity, no stimulation, no pollution, good construction performance, high dimensional stability, less shrinkage and no cracking in the hardening process.

Description

technical field [0001] The invention relates to an industrial concrete preservative. Background technique [0002] In reinforced concrete structures, due to improper design, construction and material selection, as well as carbonation, environmental pollution, use of deicing salt, external force impact, microbial corrosion and other physical and chemical effects, many of them cannot reach the expected life and suffer damage, thus bringing Property loss and waste of energy and resources. Premature failure of concrete structures due to corrosion of steel bars has become the dominant factor affecting durability and strength. So far, people have proposed a variety of methods to prevent concrete from rusting, such as increasing the thickness of the concrete protective layer, adding preservatives to make it high-performance concrete, concrete surface coating, etc. Among them, adding preservatives as an economical and practical method, Has been widely used. However, the preservat...

AI Technical Summary

Problems solved by technology

However, the preservatives on the market today have a single effect, and the combined use will greatly reduce the effect, and most of the preservatives on the market have certain pollution and toxicity to the environment, and have a certain impact on indoor air, which is not conducive to the physical and mental health of production operators. Health and ecological environment development