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Fiber concrete prepared from multi-solid-waste coupling admixture
The invention discloses fiber concrete prepared from a multi-solid-waste coupling admixture. The fiber concrete comprises the following raw materials in parts by weight: 10-20 parts of high-silicon iron tailings, 5-10 parts of desulfurized fly ash, 5-10 parts of slag, 70-80 parts of cement, 120-140 parts of machine-made sand, 280-320 parts of machine-made stone, 2 parts of a chemical activator, 1 part of a water reducing agent, 1 part of triisopropanolamine, 5-10 parts of polypropylene fibers and 40-50 parts of water. The desulfurized fly ash can prolong the cement setting time. A solid waste coupling admixture is subjected to chemical excitation and high-temperature calcination, the durability and compressive strength of the concrete are improved, the strength of a concrete interface transition area is improved by using the machine-made sand and stone as aggregates, the problems of insufficient supply of natural sand and stone and the like can be relieved, and triisopropanolamine is used as a grinding aid and can remarkably improve the mechanical grinding fineness. Cement can be replaced according to the replacement rate of 22%-33%, resource utilization of large industrial solid waste is achieved, and accumulation of tailings is reduced.
本发明公开了多固废耦合掺合料制备纤维混凝土，包括以下重量份的原料：高硅铁尾矿10‑20份、脱硫灰5‑10份、矿渣5‑10份、水泥70‑80份、机制砂120‑140份、机制石280‑320份、化学活化剂2份、减水剂1份、三异丙醇胺1份、聚丙烯纤维5‑10份、水40‑50份。脱硫灰可以延长水泥凝结时间。固废耦合掺合料经化学激发，高温煅烧，提高了混凝土耐久性，抗压强度，机制砂石作骨料提高了混凝土界面过渡区的强度并且可以缓解天然砂石供应不足等问题，三异丙醇胺作为助磨剂，其可显著机械研磨的细度。本发明可以按22%‑33%的取代率取代水泥，实现了大工业固废的资源利用，减少尾矿的堆积。
Fiber concrete prepared from multi-solid-waste coupling admixture
The invention discloses fiber concrete prepared from a multi-solid-waste coupling admixture. The fiber concrete comprises the following raw materials in parts by weight: 10-20 parts of high-silicon iron tailings, 5-10 parts of desulfurized fly ash, 5-10 parts of slag, 70-80 parts of cement, 120-140 parts of machine-made sand, 280-320 parts of machine-made stone, 2 parts of a chemical activator, 1 part of a water reducing agent, 1 part of triisopropanolamine, 5-10 parts of polypropylene fibers and 40-50 parts of water. The desulfurized fly ash can prolong the cement setting time. A solid waste coupling admixture is subjected to chemical excitation and high-temperature calcination, the durability and compressive strength of the concrete are improved, the strength of a concrete interface transition area is improved by using the machine-made sand and stone as aggregates, the problems of insufficient supply of natural sand and stone and the like can be relieved, and triisopropanolamine is used as a grinding aid and can remarkably improve the mechanical grinding fineness. Cement can be replaced according to the replacement rate of 22%-33%, resource utilization of large industrial solid waste is achieved, and accumulation of tailings is reduced.
本发明公开了多固废耦合掺合料制备纤维混凝土，包括以下重量份的原料：高硅铁尾矿10‑20份、脱硫灰5‑10份、矿渣5‑10份、水泥70‑80份、机制砂120‑140份、机制石280‑320份、化学活化剂2份、减水剂1份、三异丙醇胺1份、聚丙烯纤维5‑10份、水40‑50份。脱硫灰可以延长水泥凝结时间。固废耦合掺合料经化学激发，高温煅烧，提高了混凝土耐久性，抗压强度，机制砂石作骨料提高了混凝土界面过渡区的强度并且可以缓解天然砂石供应不足等问题，三异丙醇胺作为助磨剂，其可显著机械研磨的细度。本发明可以按22%‑33%的取代率取代水泥，实现了大工业固废的资源利用，减少尾矿的堆积。
Fiber concrete prepared from multi-solid-waste coupling admixture
多固废耦合掺合料制备纤维混凝土
ZHANG YANNIAN (author) / LIU BONAN (author) / YAN FEI (author) / XU YAN (author) / HUI ZHIFENG (author)
2021-11-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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