Geopolymer foamed light aggregate concrete and preparation method thereof

A lightweight aggregate concrete and geopolymer technology, which is applied in ceramic products, other household utensils, cement production, etc., can solve the problems of strength decrease, foamed cement solidification too fast, shape bubbles and bubbles difficult to grow, and achieve Fast setting and hardening speed, controllable construction process, and the effect of reducing CO2 emissions

Inactive Publication Date: 2017-08-15
MAANSHAN MCC17 ENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems that the strength of the existing cement-based foamed concrete material is greatly reduced when used for high-temperature heat preservation, and the slag-based polymer foamed cement solidifies too quickly, making it difficult for foaming medium-shaped and bubbles to grow, the invention provides a Geopolymer foamed lightweight aggregate concrete and preparation method thereof

Method used

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  • Geopolymer foamed light aggregate concrete and preparation method thereof
  • Geopolymer foamed light aggregate concrete and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0038] This embodiment provides a kind of geopolymer foamed lightweight aggregate concrete, which is composed of slag-fly ash composite micropowder, alkaline activator, inorganic ultra-light aggregate, high molecular polymer powder, inorganic short fiber, hydrogen peroxide chemical It consists of foaming agent, foaming catalyst, inorganic porous carrier and foam stabilizer.

[0039] In the composition of the above materials: the alkaline activator accounts for 6% of the mass of the slag powder-coal ash composite micropowder; the mass ratio of the slag-fly ash composite micropowder to the inorganic ultra-light aggregate is 1:1; - 0.1% of the mass of the fly ash composite micropowder; inorganic short fibers account for 0.1% of the mass of the slag-fly ash composite micropowder; hydrogen peroxide chemical foaming agent accounts for 2% of the mass of the slag-fly ash composite micropowder; chemical foaming The foaming catalyst of the agent accounts for 0.05% of the mass of the sla...

Embodiment 2

[0059] This embodiment provides a kind of geopolymer foamed lightweight aggregate concrete, which is composed of slag-fly ash composite micropowder, alkaline activator, inorganic ultra-light aggregate, high molecular polymer powder, inorganic short fiber, hydrogen peroxide chemical It consists of foaming agent, foaming catalyst, inorganic porous carrier and foam stabilizer.

[0060] In the composition of the above materials: the alkaline activator accounts for 8% of the mass of the slag-fly ash composite micropowder; the mass ratio of the slag micropowder to the inorganic ultra-light aggregate is 1:0.8; 0.1% of the mass of the micropowder; short inorganic fibers account for 0.1% of the mass of the slag-fly ash composite micropowder; the hydrogen peroxide chemical foaming agent accounts for 2% of the mass of the slag-fly ash composite micropowder; the foaming catalyst of the chemical blowing agent It accounts for 0.05% of the mass of slag-fly ash composite micropowder; the foam...

Embodiment 3

[0080] The foamed light aggregate geopolymer concrete smear material obtained in Example 3 can be directly applied on the outer side of the kiln wall and the outer side of the high-temperature gas delivery metal pipeline to be heat-insulated to form a heat-insulation coating with a thickness of 10-50mm, The cementitious material is scraped and smoothed before final setting, and finally hardened into a lightweight inorganic insulation shell with high temperature resistance, heat insulation, waterproof and corrosion resistance, with a dry weight of 350kg / m3, and its thermal conductivity at 700°C is less than 0.1W / (Km), the foamed lightweight aggregate concrete layer is not easy to crack, never falls off and has a consistent lifespan for the insulation structure.

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Abstract

The invention discloses geopolymer foamed light aggregate concrete. The material is composed of slag-fly ash composite micro powder, an alkali activator, inorganic super-light aggregate, high-molecular polymer powder, inorganic staple fibers, a hydrogen peroxide chemical foaming agent, a foaming catalyst, an inorganic porous carrier and a foam stabilizer. The method for preparing the geopolymer foamed light aggregate concrete comprises the following steps: mixing and manufacturing various components according to a certain ratio. The problems that the strength of the conventional cement-based foam concrete material is greatly decreased when used for high-temperature insulation and foams and bubbles difficultly grow due to too fast setting of slag-based geopolymer foamed cement and the like can be effectively solved. Therefore, the durability of the foamed light aggregate geopolymer concrete layer is obviously improved, and the light aggregate concrete can be used for promoting energy-saving insulation of low-temperature and normal-pressure building envelopes, decreasing the dead weight of walls and reducing CO2 emission, contributes to improving ecological and economic benefits and is extremely convenient in construction. The construction cost and material cost can be greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation material preparation, and more specifically relates to a geopolymer foamed light aggregate concrete and a preparation method thereof. Background technique [0002] At present, "energy saving and emission reduction" is one of the important policies of the country, so the role of high-performance thermal insulation materials is becoming more and more important. For a long time, the insulation of kilns and hot air pipes has been wrapped with inorganic insulation cotton felt or ceramic fiber castable coating for insulation, which has achieved obvious energy-saving effects. Ceramic fiber is a light-weight refractory material with good performance. Its use can greatly reduce the weight of the furnace body and speed up the heating speed of the thermal kiln. The current ceramic fiber blankets, felts, boards and other products have low strength and will be pulverized after use, resulting in a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/00C04B111/20C04B111/27C04B111/28C04B111/40
CPCC04B28/006C04B38/02C04B2111/00482C04B2111/00525C04B2111/2038C04B2111/27C04B2111/28C04B2111/40C04B2201/20C04B2201/32C04B22/062C04B18/027C04B14/185C04B14/42C04B22/08C04B24/38C04B2103/0057C04B2103/302C04B24/383C04B22/12Y02P40/10
Inventor 雷团结凌贤长钱元弟樊传刚李亚辉徐华超雷雅平
Owner MAANSHAN MCC17 ENG TECH CO LTD
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