A waterproof foam concrete permanent insulation template

Abstract

The invention relates to a waterproof type foam concrete permanent heat preservation formwork. The formwork is composed of a foam concrete waterproof heat preservation layer, anchoring type hook grooves and embedded reinforcing steel bars. The anchoring type hook grooves are formed in the foam concrete waterproof heat preservation layer. The embedded reinforcing steel bars are arranged at the force bearing positions of the anchoring type hook grooves. The solid part of the foam concrete waterproof heat preservation layer is prepared from, by weight, 29-57% of cement, 0.25-2.20% of siloxane, 40-70% of siliceous dust, 0.15-0.35% of water reducing agent and 0.3-0.5% of setting control material. Foaming agent foam is prepared by conducting foaming on a foaming agent and an aqueous solution. The volume of foaming agent foam is 50-80 times of the total volume of the solid part. The formwork can be used for structures such as roofs, floor heating projects and external walls, a support is detached after foam concrete pouring reaches the strength, the permanent heat preservation formwork and structure are permanently fixed, the cost of the formwork is reduced, and the construction period is shortened.

Description

technical field [0001] The invention relates to concrete in the technical field of construction engineering, in particular to a waterproof foam concrete permanent thermal insulation template. Background technique [0002] The damage or destruction of concrete structures caused by environmental factors mainly include concrete carbonation, chloride ion erosion, alkali-aggregate reaction, freeze-thaw cycle damage, etc. It is worth noting that almost all the effects of erosion on concrete and steel bars require water as a medium. On the other hand, almost all the damage to concrete structures caused by erosion is related to the expansion of concrete caused by erosion and eventually leads to cracking of concrete structures. related, and when the concrete structure cracks, the erosion rate will be greatly accelerated, and the durability of the concrete structure will further deteriorate. [0003] For foam concrete, in view of its porous structure, the shortcomings of high water a...

AI Technical Summary

Problems solved by technology

[0005] However, from the current various types of porous concrete, the waterproof materials used are basically silicone materials, but the water absorption rate of its products is still high, and there are relatively large drying shrinkage rates, low early strength and durability deviations in terms of performance. and other defects

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