A general-purpose Portland cement-based ultra-light physical foaming foam concrete

Abstract

The invention discloses a general-purpose portland cement-based ultra-light physical foaming foam concrete, which is characterized in that: the components and weight percentages are 20%-70% of general-purpose Portland cement, and 0-40% of A-type admixtures % or / and B-type admixture 0-40%, C-type admixture 0.5%-4%, foaming agent 0.3%-2%, water reducing agent 0-1%, fiber 0-4%, and water 25% ~60% is made by mixing, molding and curing. The universal Portland cement-based ultra-light physical foaming foam concrete of the present invention has the characteristics of ultra-low dry density, low thermal conductivity, high strength, wide source of raw materials, low cost, simple preparation process, and easy selection of maintenance process; it is suitable for As insulation engineering, floor heating engineering, backfill engineering, anti-seismic energy-absorbing, lightweight cushion, catalyst carrier materials, it is especially suitable for external wall insulation systems, roof insulation systems, composite insulation walls, and buffer energy-absorbing systems.

Description

technical field [0001] The invention belongs to concrete and relates to a general Portland cement-based ultra-light physical foaming foam concrete. The foam concrete of the present invention, as a light-weight building insulation material, is suitable for thermal insulation projects, floor heating projects, backfill projects, shock-resistant energy-absorbing, lightweight cushions, and catalyst carrier materials, and is especially suitable for building exterior wall insulation systems and roof insulation system, composite thermal insulation wall, buffer energy absorption system. Background technique [0002] With the promulgation and implementation of my country's wall reform and building energy-saving policies, and affected by building fires, modern energy-saving green buildings urgently need non-combustible thermal insulation materials with excellent thermal insulation performance, waste utilization, and light weight. As a new type of building material, foam concrete can m...

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Problems solved by technology

Publication No. CN101508593A discloses "ultra-light thermal insulation foam concrete and its application". Although the ultra-light foam concrete is prepared by physical foaming method, it needs to be realized by adding lightweight aggregate or organic binder, which has the disadvantages of lack of resources and high cost. question

Another example is the "low-cost ultra-low density foam concrete" disclosed by the publication number CN102515664A. Although ordinary Portland cement, I or II fly ash, granulated blast furnace slag micropowder and other raw materials are used, the physical method of preparing ultra-light foam concrete It needs to be realized by adding an expansion agent. There are various types of expansion agents on the market, and the quality is uneven, and most of them are fired at high temperature. Not only is the cost high, the price is high, the energy consumption is high, and the quality is still controversial, the practicability poor

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