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Coal mine slurry filling curing agent and preparation method thereof
The invention discloses a coal mine slurry filling curing agent and a preparation method thereof. The coal mine slurry filling curing agent comprises the following components in parts by weight: 600-800 parts of sulphoaluminate cement clinker, 200-300 parts of lime, 50-200 parts of triethanolamine, 1-3 parts of a coagulant and 5-10 parts of a super retarder. The curing agent disclosed by the invention does not change the original components of the coal mine slurry filling material, and is convenient for large-scale treatment of mine gangue solid waste by slurry with 20-75% of gangue content. The curing agent can be used as an additive, the mixing amount of the curing agent does not exceed 3% of the mass of solids in slurry, and the curing agent is small in mixing amount and relatively economical. The concrete has expansion and enhancement effects, and the expansion rate exceeds 20 times of the volume of the concrete. The curing agent can achieve initial setting within about 10 minutes, the final strength of slurry with the mass fraction larger than or equal to 50% can reach 5 MPa or above, and the effect of rapidly solidifying large-water-volume slurry is achieved.
本发明公开了一种煤矿浆体充填固化剂及其制备方法，包括如下重量份数的各组分：硫铝酸盐水泥熟料600~800份、石灰200~300份、三乙醇胺50~200份、促凝剂1~3份和超缓凝剂5~10份。本发明的固化剂不改变煤矿浆体充填材料原有组份，便于20%~75%矸石含量的浆体大规模处置矿山矸石固废。本发明的固化剂可作为外加剂使用，其掺量不超过浆体中固体质量的3%，掺量小，较为经济。本发明具有膨胀、增强作用，膨胀率超过自身体积的20倍。该固化剂能在10分钟左右达到初凝，可使质量分数≥50%的浆体最终强度达到5MPa以上，起到快速固结大水量浆体的作用。
Coal mine slurry filling curing agent and preparation method thereof
The invention discloses a coal mine slurry filling curing agent and a preparation method thereof. The coal mine slurry filling curing agent comprises the following components in parts by weight: 600-800 parts of sulphoaluminate cement clinker, 200-300 parts of lime, 50-200 parts of triethanolamine, 1-3 parts of a coagulant and 5-10 parts of a super retarder. The curing agent disclosed by the invention does not change the original components of the coal mine slurry filling material, and is convenient for large-scale treatment of mine gangue solid waste by slurry with 20-75% of gangue content. The curing agent can be used as an additive, the mixing amount of the curing agent does not exceed 3% of the mass of solids in slurry, and the curing agent is small in mixing amount and relatively economical. The concrete has expansion and enhancement effects, and the expansion rate exceeds 20 times of the volume of the concrete. The curing agent can achieve initial setting within about 10 minutes, the final strength of slurry with the mass fraction larger than or equal to 50% can reach 5 MPa or above, and the effect of rapidly solidifying large-water-volume slurry is achieved.
本发明公开了一种煤矿浆体充填固化剂及其制备方法，包括如下重量份数的各组分：硫铝酸盐水泥熟料600~800份、石灰200~300份、三乙醇胺50~200份、促凝剂1~3份和超缓凝剂5~10份。本发明的固化剂不改变煤矿浆体充填材料原有组份，便于20%~75%矸石含量的浆体大规模处置矿山矸石固废。本发明的固化剂可作为外加剂使用，其掺量不超过浆体中固体质量的3%，掺量小，较为经济。本发明具有膨胀、增强作用，膨胀率超过自身体积的20倍。该固化剂能在10分钟左右达到初凝，可使质量分数≥50%的浆体最终强度达到5MPa以上，起到快速固结大水量浆体的作用。
Coal mine slurry filling curing agent and preparation method thereof
一种煤矿浆体充填固化剂及其制备方法
ZHU LEI (author) / ZHENG ZHONGYOU (author) / LIU CHENGYONG (author) / LI CHAO (author) / ZHANG FUTAO (author) / ZHANG JINPENG (author) / DONG LI (author) / WANG HANQIU (author) / XU KAI (author) / WU YUYI (author)
2022-12-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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