1. 新疆大学建筑工程学院
2. 新疆大学新疆建筑结构与抗震重点实验室
纸质出版:2023
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[1]覃森,沙吾列提·拜开依,汪锋,等.矿物掺合料复掺对套筒灌浆料性能的影响[J].新疆大学学报(自然科学版)(中英文),2023,40(01):122-128.
[1]覃森,沙吾列提·拜开依,汪锋,等.矿物掺合料复掺对套筒灌浆料性能的影响[J].新疆大学学报(自然科学版)(中英文),2023,40(01):122-128. DOI: 10.13568/j.cnki.651094.651316.2022.03.22.0001.
DOI:10.13568/j.cnki.651094.651316.2022.03.22.0001.
为满足套筒灌浆料基本性能要求,固定水胶比为0.24,胶砂比为1︰1,采用单因素试验,通过改变减水剂与消泡剂掺量,确定了基准配合比,并研究了粉煤灰、硅灰、矿粉两两复掺对灌浆料初始流动度、30 min流动度和各龄期抗压强度的影响规律.结果表明:粉煤灰与矿粉组合对抗压强度影响最小,对灌浆料流动性最有利;硅灰与矿粉组合对灌浆料后期抗压强度影响最大,但硅灰掺量过大时会造成流动性下降.当硅灰掺量为7.5%、矿粉掺量为7.5%时,灌浆料流动性良好,1 d强度为52.4 MPa
3 d强度为76.9 MPa
28 d强度为96.5 MPa.
In order to meet the basic performance requirements of sleeve grouting material
the fixed water binder ratio is 0.24 and the binder sand ratio is 1︰1. The benchmark mix proportion is determined by changing the content of water reducer and defoamer. The effects of fly ash
silica fume and mineral powder on the initial fluidity
30 min fluidity and compressive strength of grouting material at each age are studied. The results show that the combination of fly ash and mineral powder has the least influence on the compressive strength and is the most beneficial to the fluidity of grouting material; The combination of silica fume and mineral powder has the greatest impact on the later compressive strength of grouting material
but the fluidity will decrease when the silica fume content is too large. When the silica fume content is 7.5% and the mineral powder content is 7.5%
the fluidity of the grouting material is good
with the strength of 52.4 MPa in one day
76.9 MPa in three days and96.5 MPa in twenty-eight days.
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