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A platform for research: civil engineering, architecture and urbanism
Normal-temperature curing fire-resistant ultra-high-performance concrete and preparation method thereof
The invention provides normal-temperature curing fire-resistant ultra-high-performance concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from the following raw material components in parts by weight: 600 to 1170 parts of Portland cement, 200 to 550 parts of sulphoaluminate cement, 85 to 125 parts of silica fume, 160 to 180 parts of mineral powder, 25 to 40 parts of nano silicon dioxide, 1100 to 1200 parts of quartz sand, 97 to 127 parts of straight steel fibers, 25 to 34 parts of torsional steel fibers, 14.5 to 19.5 parts of a composite water reducing agent, 154.5 to 210 parts of water, 4 to 24 parts of paraffin beads, organic fibers with the doping amount of 0.6 to 1.8 kg/m<3>, 10.5 to 26.5 parts of SAP and 40 to 105 parts of FQY. The concrete provided by the invention has excellent mechanical properties, does not need hot curing and has the characteristic of high temperature resistance; the preparation method is simple in process, low in cost and suitable for underground engineering.
本发明提供一种常温养护耐火超高性能混凝土及其制备方法，属于建筑材料技术领域。按重量份计，其原料组分包括：硅酸盐水泥600～1170份，硫铝酸盐水泥200～550份，硅灰85～125份，矿粉160～180份，纳米二氧化硅25～40份，石英砂1100～1200份，平直钢纤维97～127份，扭转型钢纤维25～34份，复合减水剂14.5～19.5份，水154.5～210份，石蜡微珠4～24份，有机纤维掺入量0.6‑1.8 kg/m3，SAP 10.5~26.5份，FQY 40~105份。本发明提供的混凝土具有优异的力学性能，无需热养护且具备耐高温特性；其制备方法工艺简单，成本低，适用于地下工程。
Normal-temperature curing fire-resistant ultra-high-performance concrete and preparation method thereof
The invention provides normal-temperature curing fire-resistant ultra-high-performance concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from the following raw material components in parts by weight: 600 to 1170 parts of Portland cement, 200 to 550 parts of sulphoaluminate cement, 85 to 125 parts of silica fume, 160 to 180 parts of mineral powder, 25 to 40 parts of nano silicon dioxide, 1100 to 1200 parts of quartz sand, 97 to 127 parts of straight steel fibers, 25 to 34 parts of torsional steel fibers, 14.5 to 19.5 parts of a composite water reducing agent, 154.5 to 210 parts of water, 4 to 24 parts of paraffin beads, organic fibers with the doping amount of 0.6 to 1.8 kg/m<3>, 10.5 to 26.5 parts of SAP and 40 to 105 parts of FQY. The concrete provided by the invention has excellent mechanical properties, does not need hot curing and has the characteristic of high temperature resistance; the preparation method is simple in process, low in cost and suitable for underground engineering.
本发明提供一种常温养护耐火超高性能混凝土及其制备方法，属于建筑材料技术领域。按重量份计，其原料组分包括：硅酸盐水泥600～1170份，硫铝酸盐水泥200～550份，硅灰85～125份，矿粉160～180份，纳米二氧化硅25～40份，石英砂1100～1200份，平直钢纤维97～127份，扭转型钢纤维25～34份，复合减水剂14.5～19.5份，水154.5～210份，石蜡微珠4～24份，有机纤维掺入量0.6‑1.8 kg/m3，SAP 10.5~26.5份，FQY 40~105份。本发明提供的混凝土具有优异的力学性能，无需热养护且具备耐高温特性；其制备方法工艺简单，成本低，适用于地下工程。
Normal-temperature curing fire-resistant ultra-high-performance concrete and preparation method thereof
一种常温养护耐火超高性能混凝土及其制备方法
KANG XIN (author) / CHEN YONGQING (author) / CHEN RENPENG (author) / WU HUAINA (author) / YANG WEI (author) / LIU YUAN (author)
2021-10-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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