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A platform for research: civil engineering, architecture and urbanism
HARDENED BODY USING FREE MgO-CONTAINING Slag AND METHOD FOR MANUFACTURING HARDENED BODY
Provided is a hardened body using free MgO-containing slag such as steelmaking slag, the hardened body being suppressed in volume expansion due to a hydration reaction by free MgO and being capable of solving the problem of insufficient strength of the hardened body. A hardened body using slag containing free MgO according to the present invention is produced by adding water to a mixture containing slag containing free MgO as a material, kneading the mixture, and then solidifying the kneaded mixture, and in the hardened body, the amount of slag containing free MgO is 2000 kg/m < 3 > or less, the amount of alumina cement is 75-200 kg/m < 3 >, and the amount of water is less than or equal to 5 kg/m < 3 >. The unit amount of the fine blast furnace slag powder is 330-530 kg/m < 3 > inclusive, and the unit amount of the boron-containing substance is 0.5-4.0 kg/m < 3 > inclusive in terms of B2O3.
本发明提供利用了炼钢炉渣等含有游离MgO的炉渣的硬化体，所述硬化体抑制了由基于游离MgO的水合反应所导致的体积膨胀，并且能够解决硬化体的强度不足。本发明的利用了含有游离MgO的炉渣的硬化体通过在包含含有游离MgO的炉渣作为材料的混合物中添加水并进行混炼、然后使混炼的上述混合物凝固而制造，在上述硬化体中，含有游离MgO的炉渣的单位量为2000kg/m3以下，氧化铝水泥的单位量为75kg/m3以上且200kg/m3以下，高炉炉渣微粉末的单位量为330kg/m3以上且530kg/m3以下，含硼物质的单位量以B2O3换算计为0.5kg/m3以上且4.0kg/m3以下。
HARDENED BODY USING FREE MgO-CONTAINING Slag AND METHOD FOR MANUFACTURING HARDENED BODY
Provided is a hardened body using free MgO-containing slag such as steelmaking slag, the hardened body being suppressed in volume expansion due to a hydration reaction by free MgO and being capable of solving the problem of insufficient strength of the hardened body. A hardened body using slag containing free MgO according to the present invention is produced by adding water to a mixture containing slag containing free MgO as a material, kneading the mixture, and then solidifying the kneaded mixture, and in the hardened body, the amount of slag containing free MgO is 2000 kg/m < 3 > or less, the amount of alumina cement is 75-200 kg/m < 3 >, and the amount of water is less than or equal to 5 kg/m < 3 >. The unit amount of the fine blast furnace slag powder is 330-530 kg/m < 3 > inclusive, and the unit amount of the boron-containing substance is 0.5-4.0 kg/m < 3 > inclusive in terms of B2O3.
本发明提供利用了炼钢炉渣等含有游离MgO的炉渣的硬化体，所述硬化体抑制了由基于游离MgO的水合反应所导致的体积膨胀，并且能够解决硬化体的强度不足。本发明的利用了含有游离MgO的炉渣的硬化体通过在包含含有游离MgO的炉渣作为材料的混合物中添加水并进行混炼、然后使混炼的上述混合物凝固而制造，在上述硬化体中，含有游离MgO的炉渣的单位量为2000kg/m3以下，氧化铝水泥的单位量为75kg/m3以上且200kg/m3以下，高炉炉渣微粉末的单位量为330kg/m3以上且530kg/m3以下，含硼物质的单位量以B2O3换算计为0.5kg/m3以上且4.0kg/m3以下。
HARDENED BODY USING FREE MgO-CONTAINING Slag AND METHOD FOR MANUFACTURING HARDENED BODY
利用了含有游离MgO的炉渣的硬化体及硬化体的制造方法
NAGATA KAZAHIKO (author) / TA YASUTAKA (author) / MATSUNAGA HISAHIRO (author)
2024-01-05
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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