General purpose Portland cement based ultra-light physical foamed concrete

A Portland cement and foam concrete technology, applied in the field of concrete, can solve problems such as lack of resources, quality disputes, uneven quality, etc., and achieve the effects of reducing costs, reducing resource consumption, and reducing the use of raw materials

Active Publication Date: 2015-07-15
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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,

Method used

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  • General purpose Portland cement based ultra-light physical foamed concrete
  • General purpose Portland cement based ultra-light physical foamed concrete
  • General purpose Portland cement based ultra-light physical foamed concrete

Examples

Experimental program
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Example Embodiment

[0034] Example 1:

[0035] A general-purpose Portland cement-based ultra-light physical foamed foam concrete, the components and weight percentages are: general-purpose Portland cement 48.6%, C-type admixture 1.9%, foaming agent 0.6%, water-reducing agent 0.3%, Water 48.6%; Among them: the general-purpose Portland cement is 42.5 grade ordinary Portland cement, the C-type admixture is made of aluminum sulfate and calcium nitrate, the foaming agent is commercially available animal protein foaming agent, and the water-reducing agent is commercially available Polycarboxylate superplasticizer;

[0036] The preparation method is: first take general-purpose Portland cement, C-type admixture, foam agent, water reducer and water according to the weight percentage; dilute the foam agent and water at a ratio of 1:15 to form a foam agent solution, and place it at a speed of 3000rpm Under mechanical stirring and foaming to obtain foam; dissolve water reducer and C-type admixture into the ...

Example Embodiment

[0038] Example 2:

[0039] A general-purpose Portland cement-based ultra-light physical foaming foam concrete, the components and weight percentages are: general-purpose Portland cement 44.1%, C-type admixture 1.7%, foaming agent 1.1%, water-reducing agent 0.3%, Water 52.8%; Among them: the general-purpose Portland cement is 52.5 grade ordinary Portland cement, the C-type admixture is composed of sodium aluminate, calcium formate, and triethanolamine, and the foaming agent is a commercially available animal protein foaming agent. The agent is a commercially available naphthalene-based water reducer;

[0040] The preparation method is: first take general-purpose Portland cement, C-type admixture, foam agent, water reducer and water according to the weight percentage; dilute the foam agent and water at a ratio of 1:10 to form a foam agent solution. Mechanically stir and foam to obtain foam; dissolve water reducer and C-type admixture into the remaining water of the foam prepara...

Example Embodiment

[0042] Example 3:

[0043] A general-purpose Portland cement-based ultra-light physical foaming foam concrete, the components and weight percentages are: general-purpose Portland cement 53.0%, C-type admixture 2.1%, foaming agent 0.4%, water reducing agent 0.3%, , Water: 44.2%; Among them: the general-purpose Portland cement is 42.5 grade slag Portland cement, the C-type admixture is composed of sodium aluminate, ferric nitrate, and potassium carbonate, and the foaming agent is a commercially available vegetable protein foaming agent. The water reducer is a commercially available naphthalene-based water reducer;

[0044] The preparation method is: first take the general-purpose Portland cement, C-type admixture, foam agent, water reducer and water according to the weight percentage; dilute the foam agent and water at a ratio of 1:15 to form a foam agent solution. Mechanically stir and foam to obtain foam; dissolve water reducer and C-type admixture into the remaining water of...

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Abstract

The invention discloses general purpose Portland cement based ultra-light physical foamed concrete which is characterized by being prepared by mixing, forming and maintaining the following components in percentage by weight: 20-70% of general purpose Portland cement, 0-40% of a type A admixture or/and 0-40% of a type B admixture, 0.5-4% of a type C additive, 0.3-2% of a foaming agent, 0-1% of a water reducing agent, 0-4% of fibers and 25-60% of water. The general purpose Portland cement based ultra-light physical foamed concrete disclosed by the invention has the characteristics of ultra-low dry density, low thermal conductivity, relatively high strength, wide raw material source, low cost, simple preparation process, easy maintenance process selection and the like, is suitable to serve as an earthquake-proof and energy-absorbing material, a lightweight cushion course and a catalyst carrier material in a thermal insulation project, a floor heating project and a back filling project, and is particularly suitable for a building exterior wall external thermal insulation system, a roof thermal insulation system, a composite thermal insulation wall body and a buffer energy absorbing system.

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...

Claims

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Application Information

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IPC IPC(8): C04B38/02C04B28/04
Inventor 牛云辉蒋俊卢忠远李军
Owner SOUTHWEAT UNIV OF SCI & TECH
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