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A platform for research: civil engineering, architecture and urbanism
Prefabricated filled wallboard and preparation method thereof
The invention provides a prefabricated filled wallboard and a preparation method thereof. The prefabricated filled wallboard comprises the following components in parts by weight: 40 to 60 parts of fast-hardened cement and pulverized coal, 1.5 to 2.5 parts of light aggregate, 10 to 20 parts of fine aggregate, 0.8 to 2.0 parts of foaming agent, 0.1 to 0.3 parts of water reducing agent, 0.1 to 0.2 parts of anti-crack fibers, 0.1 to 0.3 parts of early strength agent and 20 to 30 parts of water. The preparation method comprises the following steps: stirring a gel material, the fine aggregate and the anti-crack fibers required by compounding together, then sequentially adding the needed water, the foaming agent, the early strength agent and the water reducing agent to obtain a slurry-like mixture; wherein the gel material consists of the fast-hardened cement and the pulverized coal; (2) adding the light aggregate into the slurry-like mixture obtained in the step (1), then injecting into a wallboard forming machine by virtue of a grouting pump for forming, and demolding to obtain the prefabricated filled wallboard. By virtue of the synergist of the gel material, the aggregates and the anti-crack fibers, the dry density of the filled wallboard reaches 650 to 700kg/m<3>, the 28-day pressure resistive strength is 10.0 to 12.0MPa, and the embedment requirement in a wall body can be met.
Prefabricated filled wallboard and preparation method thereof
The invention provides a prefabricated filled wallboard and a preparation method thereof. The prefabricated filled wallboard comprises the following components in parts by weight: 40 to 60 parts of fast-hardened cement and pulverized coal, 1.5 to 2.5 parts of light aggregate, 10 to 20 parts of fine aggregate, 0.8 to 2.0 parts of foaming agent, 0.1 to 0.3 parts of water reducing agent, 0.1 to 0.2 parts of anti-crack fibers, 0.1 to 0.3 parts of early strength agent and 20 to 30 parts of water. The preparation method comprises the following steps: stirring a gel material, the fine aggregate and the anti-crack fibers required by compounding together, then sequentially adding the needed water, the foaming agent, the early strength agent and the water reducing agent to obtain a slurry-like mixture; wherein the gel material consists of the fast-hardened cement and the pulverized coal; (2) adding the light aggregate into the slurry-like mixture obtained in the step (1), then injecting into a wallboard forming machine by virtue of a grouting pump for forming, and demolding to obtain the prefabricated filled wallboard. By virtue of the synergist of the gel material, the aggregates and the anti-crack fibers, the dry density of the filled wallboard reaches 650 to 700kg/m<3>, the 28-day pressure resistive strength is 10.0 to 12.0MPa, and the embedment requirement in a wall body can be met.
Prefabricated filled wallboard and preparation method thereof
WU XIAODONG (author) / ZHAO YERONG (author) / DING ERHU (author) / YE QINGDE (author) / LIU YUNPENG (author)
2016-02-03
Patent
Electronic Resource
English
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