Concrete additive and concrete

Abstract

The invention discloses a concrete additive and the concrete. The concrete additive comprises the following raw material components: 100 parts of talcum powder, 20 to 30 parts of bentonite, 20 to 30 parts of calcium carbonate, 20 to 30 parts of argil, glass fiber powder recovered from a production workshop, gypsum powder, 20 to 30 parts of an organic solvent and 10 to 20 parts of a monomer material, wherein the monomer material is mixed with other materials after being dissolved into the organic solvent. The concrete comprises the following raw materials: 100 parts of Portland cement, 100 to 200 parts of sand, 180 to 200 parts of water, 600 to 700 parts of stones, 20 to 50 parts of the concrete additive, 10 to 20 parts of coal ash and 10 to 20 parts of polyamide fibers.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a concrete additive and concrete thereof. Background technique [0002] As one of the most important building materials at present, concrete is used in almost all modern buildings. However, since the concrete must contain air in its interior during application, cracks are often formed after solidification. Although, builders have adopted vibrating rods to remove air, but the effect is not satisfactory. For this reason, some users adopt the cement disclosed in the Chinese invention patent: a kind of cement with anti-crack and anti-leakage (invention announcement number: CN101037307U) as a component of concrete. The crack-proof and leak-proof cement uses Portland cement as the raw material and is mixed with iron powder, so that the iron reacts with air and water, so that the iron expands rapidly, and drives the cement to automatically fill the capillary in the concrete with great penetrat...

AI Technical Summary

Problems solved by technology

However, in actual use of such concrete, it is found that due to the excessive iron oxidation rate, the storage time of the cement is extremely short, about less than one month, which increases the risk of using the concrete

At the same time, the increase of iron content makes the density of the cement larger, thereby increasing the weight of the concrete, and the strength of the concrete is reduced due to the presence of iron oxides in the formed concrete

[0003] At the same time, due to the occurrence of acid rain, concrete products are often eroded by acid rain. Over the years, it not only affects the appearance of concrete products, but also seriously affects their performance.