Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for inhibiting alkali-silicon active reaction of concrete aggregate by using fly ash
The invention relates to a method for inhibiting alkali-silicon active reaction of concrete aggregate by using fly ash, which comprises the following steps: S1, obtaining an empirical formula Z = ax + by + c, z being the maximum value of the alkali-silicon active expansion rate of every 1wt% of fly ash, and x being the activity index of fly ash; y is the mass content of SiO2, Al2O3 and Fe2O3 in the fly ash; s2, obtaining the fly ash for the test, the activity index of the fly ash for the test and the mass content of SiO2 + Al2O3 + Fe2O3 in the fly ash, substituting into the empirical formula in the S1, and calculating to obtain a Z value; s3, concrete with an aggregate alkali-silicon active reaction and the 28d rapid mortar rod expansion rate m of the concrete are obtained, the mass percentage n of the fly ash for the aggregate test doped into the concrete is equal to m/(Z/1%), and therefore the fly ash for the test is doped into the concrete according to the mass percentage n for construction. The method can quickly solve the problem of inhibiting the alkali-silicon active reaction of the concrete aggregate, ensures the construction progress, and has a wide application prospect.
本发明涉及一种利用粉煤灰抑制混凝土骨料碱一硅活性反应的方法，包括：S1，获得经验公式Z＝ax+by+c，其中，z为每1wt％的粉煤灰抑制碱‑硅活性膨胀率的最大值，x为粉煤灰的活性指数；y为粉煤灰的中SiO2+Al2O3+Fe2O3的质量含量；S2，获得试验用粉煤灰，以及试验用粉煤灰的活性指数和其中SiO2+Al2O3+Fe2O3的质量含量，带入S1中所述经验公式中，计算得到Z值；S3，获得存在骨料碱一硅活性反应的混凝土，以及所述混凝土的28d快速砂浆棒膨胀率m，则所述骨料试验用粉煤灰的掺入所述混凝土的质量百分比n＝m÷(Z÷1％)，因此，将所述试验用粉煤灰按照质量百分比n掺入所述混凝土中进行施工即可。该方法可以快速解决抑制混凝土骨料碱一硅活性反应的问题，保证施工进度，具有广泛的运用前景。
Method for inhibiting alkali-silicon active reaction of concrete aggregate by using fly ash
The invention relates to a method for inhibiting alkali-silicon active reaction of concrete aggregate by using fly ash, which comprises the following steps: S1, obtaining an empirical formula Z = ax + by + c, z being the maximum value of the alkali-silicon active expansion rate of every 1wt% of fly ash, and x being the activity index of fly ash; y is the mass content of SiO2, Al2O3 and Fe2O3 in the fly ash; s2, obtaining the fly ash for the test, the activity index of the fly ash for the test and the mass content of SiO2 + Al2O3 + Fe2O3 in the fly ash, substituting into the empirical formula in the S1, and calculating to obtain a Z value; s3, concrete with an aggregate alkali-silicon active reaction and the 28d rapid mortar rod expansion rate m of the concrete are obtained, the mass percentage n of the fly ash for the aggregate test doped into the concrete is equal to m/(Z/1%), and therefore the fly ash for the test is doped into the concrete according to the mass percentage n for construction. The method can quickly solve the problem of inhibiting the alkali-silicon active reaction of the concrete aggregate, ensures the construction progress, and has a wide application prospect.
本发明涉及一种利用粉煤灰抑制混凝土骨料碱一硅活性反应的方法，包括：S1，获得经验公式Z＝ax+by+c，其中，z为每1wt％的粉煤灰抑制碱‑硅活性膨胀率的最大值，x为粉煤灰的活性指数；y为粉煤灰的中SiO2+Al2O3+Fe2O3的质量含量；S2，获得试验用粉煤灰，以及试验用粉煤灰的活性指数和其中SiO2+Al2O3+Fe2O3的质量含量，带入S1中所述经验公式中，计算得到Z值；S3，获得存在骨料碱一硅活性反应的混凝土，以及所述混凝土的28d快速砂浆棒膨胀率m，则所述骨料试验用粉煤灰的掺入所述混凝土的质量百分比n＝m÷(Z÷1％)，因此，将所述试验用粉煤灰按照质量百分比n掺入所述混凝土中进行施工即可。该方法可以快速解决抑制混凝土骨料碱一硅活性反应的问题，保证施工进度，具有广泛的运用前景。
Method for inhibiting alkali-silicon active reaction of concrete aggregate by using fly ash
一种利用粉煤灰抑制混凝土骨料碱一硅活性反应的方法
WU JINZAO (Autor:in) / WEI JIANZHONG (Autor:in) / CHEN LIYUAN (Autor:in) / LI LUNPING (Autor:in) / CHEN PINGHUA (Autor:in) / CHEN BING (Autor:in) / XIE LINMIAO (Autor:in) / ZHONG SONGHUI (Autor:in) / XIAO ZUKUO (Autor:in) / LUO MINGYING (Autor:in)
27.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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