Foaming agent of waterproof foam concrete, preparation method and construction method

Abstract

The invention relates to foaming agent of waterproof foam concrete, a preparation method and a construction method, which belongs to the fields of construction materials, a preparation method thereof and an architectural method thereof. The foaming agent of the invention comprises the following raw materials in part by weight: 30 to 35 parts of keratinous albumen powder, 4 to 5 parts of Ca(OH)2, 1.5 to 2.5 parts of NaHSO3, 270 to 320 parts of water, 0.8 to 1.5 parts of sodium dodecyl benzene sulfonate (SDBS), 0.2 to 0.7 part of sodium dodecyl sulfate, 0.8 to 1 part of gelatin and 0.5 to 1 part of trolamine. The weight of sulphamic acid is matched with that of Ca(OH)2 and NaHSO3, and the pH value of the mixed three materials reaches 7.

Description

technical field [0001] The invention relates to a foaming agent for waterproof foam concrete, a preparation method and a construction method, and belongs to the fields of building materials, preparation methods and construction methods. Background technique [0002] In the prior art, foam concrete has a single function and can only be used as a slope filling layer or a thermal insulation slope layer, and its strength is low, its water absorption rate is high, it is easy to crack, shell, sand, and the structure layer or waterproof Layer bonding is not good. In the prior art, various foaming agents are used, and various preparation processes are implemented, such as Chinese patent application 200420023203, a kind of foam concrete and its preparation method and special reaction tank, such as Chinese patent application 99236012 roofing Foam concrete waterproof heat insulation layer, as Chinese patent application 87103036A discloses a kind of foam concrete and its preparation met...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, foam concrete has a single function and can only be used as a slope filling layer or a thermal insulation slope layer, and its strength is low and its water absorption rate is high. Easy to crack, shell, sand, and not well combined with the structural layer or waterproof layer. In the prior art, a variety of foam agents are used, and a variety of preparation processes are implemented, such as Chinese patent application 200420023203, a foam concrete Its preparation method and special-purpose reaction tank, such as Chinese patent application 99236012 roof foam concrete waterproof insulation layer, as Chinese patent application 87103036A discloses a kind of foam concrete and preparation method thereof with grease plant as foaming agent, such as Chinese patent application 03126980X Disclosed is a method for preparing water-repellent foam concrete and its use, etc.

The above technical solutions have their own advantages and disadvantages, and there are certain limitations and defects. It is well known that the quality of foam concrete preparation is not only directly related to the foaming agent, but also has an important relationship with the construction material selection, construction technology, and construction equipment. Economically, the commercially available foam agents can be divided into animal type (Qinghai 3% type), plant synthetic type, rosin type and animal compound type. For example, the foamed concrete produced by the foam agent made of rosin cannot be used for pumps. However, the foamed concrete with low bulk density cannot be produced, and river sand should be added in the production, so it is easy to produce sand and crust, while the foamed concrete produced by plant type or other foaming agents has high water absorption and is easy to crack, so it can only be used alone As a filling or slope-finding product, the strength is also low

Some have a large expansion ratio but poor stability, some have good stability but low strength, and some cannot be pumped by mechanical means, etc.