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Method for producing light and novel reinforced concrete wall materials by blending slag micropowder

A technology of reinforced concrete and slag micropowder, which is applied in the direction of ceramic forming machines and manufacturing tools, can solve the problems affecting the development of lightweight wall materials, complex methods, and high production costs, so as to improve the forming speed and production efficiency and improve the microstructure , the effect of light weight

Active Publication Date: 2010-07-14
中山建华墙体材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the prior art, the reinforced concrete lightweight wall materials produced for construction are generally made of cementitious materials, sand, water, water reducing agent, foaming agent, etc., and the cementitious materials are generally made of grade 42.5 or above. All cement, the production cost is relatively high, and the existing methods of producing reinforced concrete lightweight wall materials for construction are generally more complicated, which affects the development of lightweight wall materials

Method used

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  • Method for producing light and novel reinforced concrete wall materials by blending slag micropowder

Examples

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Effect test

Embodiment 1

[0018] Production of reinforced concrete lightweight wall materials for construction with a length of 2800mm, a plate thickness of 100mm, and a core hole of 40mm, that is, lightweight slats. Grinding the granulated blast furnace slag until the specific surface area is ≥3800cm 2 / g, 28d slag powder with activity index ≥ 70%. Use the above-mentioned slag powder and other qualities to replace 10% of the 42.5 grade P.II Portland cement in the common formula, together with sand, ceramsite, high-efficiency water reducer, foaming agent, water and 90% of the cement in the common formula Add it to a forced mixer and stir for 210 seconds; the amount of slag powder is 35Kg / m 3 , the cement is 315Kg / m 3 , set up the steel skeleton in the mold of the cleaned reinforced concrete light wall material for construction, then feed the mixed concrete material into the mold, and finally vibrate, make grooves, plaster the surface, and after core pulling, it can be naturally cured and shortened. ...

Embodiment 2

[0020] The production of reinforced concrete lightweight wall materials for construction with a length of 2430mm, a plate thickness of 85mm, and a core hole of 40mm, that is, lightweight slats. Grinding the granulated blast furnace slag until the specific surface area is ≥3800cm 2 / g, 28d slag powder with activity index ≥ 75%. Use the above-mentioned finely ground slag powder to replace 30% of the 42.5 grade P.II Portland cement in the common formula, and sand, ceramsite, high-efficiency water reducer, foaming agent, water and 70% of the common formula Add the cement together into the forced mixer and stir for 250 seconds; the amount of slag fine powder is 105Kg / m 3 , the cement is 245Kg / m 3 , set up the steel skeleton in the mold of the cleaned reinforced concrete light wall material for construction, then feed the mixed concrete material into the mold, and finally vibrate, make grooves, plaster the surface, and carry out natural maintenance after core pulling. Shorten the...

Embodiment 3

[0022] The production of reinforced concrete lightweight wall materials for construction with a length of 2800mm, a plate thickness of 85mm, and a core hole of 40mm, that is, lightweight slats. Grinding the granulated blast furnace slag until the specific surface area is ≥3800cm 2 / g, 28d slag powder with activity index ≥ 80%. Use the above-mentioned slag powder to replace 50% of the 42.5 grade P.II Portland cement in the common formula, together with sand, ceramsite, superplasticizer, foaming agent, water and 50% of the cement in the common formula Add it into a forced mixer and stir for 120 seconds; the amount of slag powder is 175Kg / m 3 , the cement is 175Kg / m 3 , set up the steel skeleton in the mold of the cleaned reinforced concrete light wall material for construction, then feed the mixed concrete material into the mold, and finally vibrate, make grooves, plaster the surface, and after core pulling, it can be naturally cured and shortened. The maintenance period save...

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Abstract

The invention discloses a method for producing light and novel reinforced concrete wall materials by blending slag micropowder, comprising the following steps of: a. grinding pelletized blast furnace slag into pelletized blast furnace slag micropowder with the specific surface area of not less than 3800 cm2 / g and the 28d activity index of not less than 70%; b. adopting the pelletized blast furnace slag micropowder to replace 5%-80% of Portland cement above 42.5 level or ordinary Portland cement in the common formula in equal mass and then adding the pelletized blast furnace slag micropowder together with sand, porcelain granules, high-efficient water reducers, foaming agents, water and 20%-95% of cement in the common formula in a forced stirrer for uniformly stirring; and c. erecting a reinforced framework in a cleaned mould of the light reinforced concrete wall materials for construction, then feeding the stirred concrete to the mould and naturally curing or steam curing under normal pressure after vibration, tank making, finishing and mould dismounting so that the light wall materials are obtained. The invention has the advantages of simple process, convenient processing and low cost.

Description

technical field [0001] The invention relates to a method for producing reinforced concrete lightweight new wall material by mixing slag micropowder. Background technique [0002] In the prior art, the reinforced concrete lightweight wall materials produced for construction are generally made of cementitious materials, sand, water, water reducing agent, foaming agent, etc., and the cementitious materials are generally made of grade 42.5 or above. All cement, the production cost is relatively high, and the existing method of producing reinforced concrete lightweight wall materials for construction is generally more complicated, which affects the development of lightweight wall materials. The applicant also filed a utility model application for "a steam curing device for producing light wall materials". Contents of the invention [0003] The object of the present invention is to overcome the deficiencies in the prior art, and provide a method for building reinforced concrete...

Claims

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Application Information

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IPC IPC(8): B28B23/02
Inventor 许景新
Owner 中山建华墙体材料有限公司