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Hybrid fiber toughened high-ductility geopolymer material and preparation method thereof
The invention relates to a hybrid fiber toughened high-ductility geopolymer material and a preparation method thereof. The hybrid fiber toughened high-ductility geopolymer material comprises the following preparation raw materials in parts by weight: 30-40 parts of fly ash; 50 to 60 parts of granulated blast furnace slag; 20-30 parts of steel slag powder; 7-10 parts of anhydrous sodium silicate; 35 to 40 parts of fine sand; 5-10 parts of steel fiber; 1-2 parts of polyethylene fiber; 35 to 40 parts of water; the average particle size of the steel slag powder is 10-50 [mu] m, and preferably, the average particle size of the steel slag powder is 10.1-15.3 [mu] m; the length of the PE fiber is 15-18 mm, and the diameter of the PE fiber is 10-25 [mu] m; the length of the steel fiber is 20-23 mm, and the diameter of the steel fiber is 0.1-0.5 mm. Three solid waste materials are mixed to prepare the high-ductility geopolymer, the geopolymer has the advantages of normal-temperature preparation, high strength and good durability, the limit elongation of the prepared geopolymer material is 5% or above and is 200 times that of common concrete, the 28d compressive strength is higher than 60MPa and is remarkably higher than that of a common pure geopolymer EGC material, and the service life of the geopolymer material is prolonged. The defect that an existing geopolymer material is difficult to have the two mechanical properties of high toughness and high strength at the same time is overcome.
本发明为一种混杂纤维增韧的高延性地聚物材料及其制备方法，包括以下重量份的制备原料：粉煤灰30‑40份；粒化高炉矿渣50‑60份；钢渣粉20‑30份；无水硅酸钠7‑10份；细砂35‑40份；钢纤维5‑10份；聚乙烯纤维1‑2份；水35‑40份；所述钢渣粉的平均粒径为10μm‑50μm，优选钢渣粉的平均粒径为10.1μm‑15.3μm；所述PE纤维长度为15‑18mm，直径为10‑25μm；所述钢纤维长度为20‑23mm的直径为0.1‑0.5mm。本发明利用三种固废材料混合制备高延性地聚物，具有常温制备、强度高、耐久性好的优点，制备出的地聚物材料的极限延伸率为5％以上，是普通混凝土的200倍，28d抗压强度高于60MPa，显著高于普遍纯地聚物EGC材料的抗压强度，解决了目前地聚物材料难以兼具韧性高和强度高两种力学性能的缺点。
Hybrid fiber toughened high-ductility geopolymer material and preparation method thereof
The invention relates to a hybrid fiber toughened high-ductility geopolymer material and a preparation method thereof. The hybrid fiber toughened high-ductility geopolymer material comprises the following preparation raw materials in parts by weight: 30-40 parts of fly ash; 50 to 60 parts of granulated blast furnace slag; 20-30 parts of steel slag powder; 7-10 parts of anhydrous sodium silicate; 35 to 40 parts of fine sand; 5-10 parts of steel fiber; 1-2 parts of polyethylene fiber; 35 to 40 parts of water; the average particle size of the steel slag powder is 10-50 [mu] m, and preferably, the average particle size of the steel slag powder is 10.1-15.3 [mu] m; the length of the PE fiber is 15-18 mm, and the diameter of the PE fiber is 10-25 [mu] m; the length of the steel fiber is 20-23 mm, and the diameter of the steel fiber is 0.1-0.5 mm. Three solid waste materials are mixed to prepare the high-ductility geopolymer, the geopolymer has the advantages of normal-temperature preparation, high strength and good durability, the limit elongation of the prepared geopolymer material is 5% or above and is 200 times that of common concrete, the 28d compressive strength is higher than 60MPa and is remarkably higher than that of a common pure geopolymer EGC material, and the service life of the geopolymer material is prolonged. The defect that an existing geopolymer material is difficult to have the two mechanical properties of high toughness and high strength at the same time is overcome.
本发明为一种混杂纤维增韧的高延性地聚物材料及其制备方法，包括以下重量份的制备原料：粉煤灰30‑40份；粒化高炉矿渣50‑60份；钢渣粉20‑30份；无水硅酸钠7‑10份；细砂35‑40份；钢纤维5‑10份；聚乙烯纤维1‑2份；水35‑40份；所述钢渣粉的平均粒径为10μm‑50μm，优选钢渣粉的平均粒径为10.1μm‑15.3μm；所述PE纤维长度为15‑18mm，直径为10‑25μm；所述钢纤维长度为20‑23mm的直径为0.1‑0.5mm。本发明利用三种固废材料混合制备高延性地聚物，具有常温制备、强度高、耐久性好的优点，制备出的地聚物材料的极限延伸率为5％以上，是普通混凝土的200倍，28d抗压强度高于60MPa，显著高于普遍纯地聚物EGC材料的抗压强度，解决了目前地聚物材料难以兼具韧性高和强度高两种力学性能的缺点。
Hybrid fiber toughened high-ductility geopolymer material and preparation method thereof
一种混杂纤维增韧的高延性地聚物材料及其制备方法
ZHANG MO (author) / YAO YALIN (author) / ZHANG JUNFEI (author)
2022-11-11
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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