A kind of frost-resistant concrete and its processing technology

Abstract

The invention relates to the technical field of concrete mixing and processing, in particular to a frost-resistant concrete, comprising the following raw material components in parts by weight: 5-15 parts of silica fume, 3-10 parts of fly ash, 50-80 parts of quartz sand, silicon 8-15 parts of algae earth, 30-55 parts of cement, 10-18 parts of antifreeze and 30-60 parts of water. The antifreeze includes the following raw material components in parts by weight: 25-40 parts of acrylic emulsion, hollow glass microspheres 3‑10 parts, 1‑1.5 parts of tea saponin, 20‑35 parts of hydroxymethylcellulose sodium, 5‑15 parts of ethylene glycol, 25‑40 parts of water reducing agent and 80‑150 parts of water; The antifreeze performance, and the product is environmentally friendly, does not affect the building quality and normal use; the invention also provides the processing technology of the antifreeze concrete, and prepares the antifreeze concrete with good antifreeze performance.

Description

technical field [0001] The invention relates to the technical field of concrete mixing and processing, in particular to a frost-resistant concrete and a processing technology thereof. Background technique [0002] In building construction, whether it is foundation, pile foundation construction, or house construction, a large amount of concrete is required. In the process of concrete mixing and processing, the mixing and processing of concrete are basically done outdoors. When mixing and processing in winter, due to the increased difference between the temperature of concrete and the outside air temperature, heat exchange will occur between the concrete and the ambient temperature. When the ambient temperature is very low, this heat exchange will quickly reduce the temperature of the concrete. For fresh concrete, the speed of temperature drop directly determines the size of the hydration temperature, the faster the temperature drops, the slower the growth of concrete strengt...

AI Technical Summary

Problems solved by technology

The invention patent with authorized notification number CN 103496907 B discloses an ultra-low temperature antifreeze concrete. By adding an antifreeze agent to the concrete, the concrete can achieve an ultra-low temperature antifreeze effect. The antifreeze agent used is composed of nitrate, calcium formate and water. ; Although the antifreeze agent of this patent can achieve the purpose of low temperature antifreeze, nitrate or nitrite has carcinogenic effect, and it is easy to cause concrete alkali aggregate reaction, thereby causing adverse phenomena such as alkali return, affecting building quality and normal use

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