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A platform for research: civil engineering, architecture and urbanism
Single-size-fraction coal gangue self-compacting concrete
The invention discloses single-size-fraction coal gangue self-compacting concrete. The single-size-fraction coal gangue self-compacting concrete comprises he following components in parts by weight: 592 to 761 parts of natural aggregate, 85 to 254 parts of coal gangue, 700 to 800 parts of river sand, 100 to 130 parts of fly ash, 400 to 500 parts of cement, 1 to 3 parts of a water reducing agent and 190 to 210 parts of water, wherein the coal gangue is single-size-fraction coal gangue with a particle size ranging from 10 mm to 20 mm. According to the single-size-fraction coal gangue self-compacting concrete provided by the invention, the adopted single-size-fraction coal gangue aggregate is convenient to screen compared with the existing continuous-grade coal gangue aggregate, so preparation cost is greatly reduced; the characteristics of large porosity and strong water absorption of the crushed coal gangue are utilized, and the coal gangue is used as an internal curing material, so the later hydration of the concrete is promoted, and the strength of the concrete is favorably improved; and the coal gangue is used for replacing a part of natural aggregate, so the problem of environmental pollution is effectively solved, the problem of scarcity of natural coarse aggregate in China is overcome, and high economic benefits are achieved.
本发明揭示了一种单粒级煤矸石自密实混凝土，其包括以下原料组分，按重量份组成：天然骨料592～761份；煤矸石85～254份；河沙700～800份；粉煤灰100～130份；水泥400～500份；减水剂1～3份；水190～210份；其中，所述煤矸石为粒径范围介于10～20mm之间的单粒级煤矸石。本发明提供的单粒级煤矸石自密实混凝土，采用的单粒级煤矸石骨料，相较于现有的连续级煤矸石骨料，便于筛分且大大减少了制备成本；并且利用破碎后的煤矸石孔隙率大、吸水性强的特点，将煤矸石作为内养护材料，促进了混凝土的后期水化，有利于提高混凝土的强度；而且利用煤矸石取代部分天然骨料，不但有效坚决了环境污染问题，还解决了我国天然粗骨料稀缺的问题，具有较强经济效益。
Single-size-fraction coal gangue self-compacting concrete
The invention discloses single-size-fraction coal gangue self-compacting concrete. The single-size-fraction coal gangue self-compacting concrete comprises he following components in parts by weight: 592 to 761 parts of natural aggregate, 85 to 254 parts of coal gangue, 700 to 800 parts of river sand, 100 to 130 parts of fly ash, 400 to 500 parts of cement, 1 to 3 parts of a water reducing agent and 190 to 210 parts of water, wherein the coal gangue is single-size-fraction coal gangue with a particle size ranging from 10 mm to 20 mm. According to the single-size-fraction coal gangue self-compacting concrete provided by the invention, the adopted single-size-fraction coal gangue aggregate is convenient to screen compared with the existing continuous-grade coal gangue aggregate, so preparation cost is greatly reduced; the characteristics of large porosity and strong water absorption of the crushed coal gangue are utilized, and the coal gangue is used as an internal curing material, so the later hydration of the concrete is promoted, and the strength of the concrete is favorably improved; and the coal gangue is used for replacing a part of natural aggregate, so the problem of environmental pollution is effectively solved, the problem of scarcity of natural coarse aggregate in China is overcome, and high economic benefits are achieved.
本发明揭示了一种单粒级煤矸石自密实混凝土，其包括以下原料组分，按重量份组成：天然骨料592～761份；煤矸石85～254份；河沙700～800份；粉煤灰100～130份；水泥400～500份；减水剂1～3份；水190～210份；其中，所述煤矸石为粒径范围介于10～20mm之间的单粒级煤矸石。本发明提供的单粒级煤矸石自密实混凝土，采用的单粒级煤矸石骨料，相较于现有的连续级煤矸石骨料，便于筛分且大大减少了制备成本；并且利用破碎后的煤矸石孔隙率大、吸水性强的特点，将煤矸石作为内养护材料，促进了混凝土的后期水化，有利于提高混凝土的强度；而且利用煤矸石取代部分天然骨料，不但有效坚决了环境污染问题，还解决了我国天然粗骨料稀缺的问题，具有较强经济效益。
Single-size-fraction coal gangue self-compacting concrete
单粒级煤矸石自密实混凝土
SUN ZHANG (author) / HUANG DIE (author) / LI LIANGREN (author) / DAI GUANGJIAN (author) / JIANG FEIFEI (author) / MA JIAN (author)
2021-04-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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