Ultralight building material and its producing method

Abstract

The invention relates to an ultra-light building material which consists of driers, extravasation materials, foaming agents and water and is characterized in that the driers consist of cement which is 10 to 15 percent of the total weight of the driers and semi-hydrated gypsum which is 85 to 90 percent of the total weight of the driers; the extravasation materials consist of an efficient water reducing agent which is 1 to 3 thousandth of the total weight of the driers, a retarder for plaster which is 2 to 4 thousandth of the total weight of the driers, polyvinyl propyl ethernamine which is 0.5 to 1.0 thousandth of the total weight of the driers and anti-cracking fiber which is 1.0 to 1.5 thousandth of the total weight of the driers; the foaming agents is 5 to 6 percent of the total weight of the driers; the weight ratio of the driers to water is 1:0.6 to 1:0.65. The invention also discloses a manufacturing method of the material. The building material is characterized by good mixture workability, easy foam adding and stabilizing and high foaming efficiency.

Description

technical field [0001] The invention relates to a lightweight building material and a manufacturing method thereof, in particular to an ultra-light building material and a manufacturing method thereof. Background technique [0002] At present, building materials with light weight, thermal insulation, heat insulation, sound insulation, and fire resistance functions have been widely used in construction. [0003] Lightweight materials usually contain a large number of closed small pores through a certain foaming process to form a porous material, so they have good thermal insulation properties. Usually, the density of ultra-light thermal insulation materials is 200kg / m 3 Below, the thermal conductivity is below 0.06W / (m·k). This kind of material is compounded in various wall materials as the main thermal insulation material, so as to meet the requirement of building energy saving of 65%. [0004] The existing market uses organic foam plastics as the main building insulation ...

AI Technical Summary

Problems solved by technology

[0004] The existing market uses organic foam plastics as the main building insulation material, and its density is 100kg / m 3 The thermal conductivity is within 0.05W / (m k), but due to the rising price of oil, the core raw material, the price of such products has nearly doubled; at the same time, such materials are compounded with small-aperture wall materials However, due to the large loss in cutting and assembly, the application of organic foam plastics in composite wall materials is limited by material cost and process

[0005] Traditional inorganic lightweight materials, on the one hand, have a high density, usually 300kg / m 3 Above, the amount of material used is large and the cost is high; on the other hand, the initial setting time of the slurry is long, it is difficult to add foam to stabilize the foam, the foaming rate is low, and the thermal conductivity is also large, usually above 0.10W / (m·k)

Therefore, when the ultra-light insulation material is made of inorganic materials, due to the long coagulation time and low viscosity, the microbubbles in the slurry are easy to communicate with each other under the action of surface tension to form larger bubbles. If the huge amount of microbubbles cannot be The foam is well stabilized, and its speed of communication is very fast, resulting in the formation of bubbles of different sizes and interpenetration, which cannot achieve the purpose of ultra-light weight