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High-ductility fiber concrete prepared from peanut shell ash
The high-ductility fiber concrete is prepared from the following components in parts by mass: 80 to 95 parts of cement, 5 to 20 parts of peanut shell ash, 8 to 12 parts of mineral powder, 18 to 22 parts of silica fume, 18 to 22 parts of fly ash, 1 to 2 parts of polyethylene fiber, 40 to 50 parts of standard sand, 2 to 4 parts of a water reducing agent and 20 to 30 parts of water. The total amount of the cement and the peanut shell ash is 100 parts. Four volcanic ash active components, namely the mineral powder, the fly ash, the silica fume and the peanut shell ash, are synergistically used as a cement gelling system, so that on the premise of reducing the cement consumption, the interface bonding performance of the PE fiber and a cement matrix is improved, the toughening effect of the PE fiber is fully exerted, and the mechanical property and the crack resistance of ECC are improved. Along with the increase of the mixing amount of the peanut shell ash, the ductility index of the ECC is increased, and the strain rate is continuously increased. The maximum strain rate of the ECC test block can reach 9.25%.
本发明公开了一种利用花生壳灰制备的高延性纤维混凝土，包括以下质量份的组分：水泥80‑95份，花生壳灰5‑20份，矿粉8‑12份，硅灰18‑22份，粉煤灰18‑22份，聚乙烯纤维1‑2份，标准砂40‑50份，减水剂2‑4份，水20‑30份；所述水泥和花生壳灰的总用量为100份。本发明使用矿粉、粉煤灰、硅灰和花生壳灰四种火山灰活性成分协同作为水泥胶凝体系，在减少水泥用量的前提下，增加PE纤维和水泥基体界面粘结性能，充分发挥PE纤维的增韧效果，提升ECC的力学性能、抗裂性能。随着花生壳灰掺量的增加，ECC的延性指标增加，应变率不断变大。本发明中ECC试块的最大应变率可以达到9.25％。
High-ductility fiber concrete prepared from peanut shell ash
The high-ductility fiber concrete is prepared from the following components in parts by mass: 80 to 95 parts of cement, 5 to 20 parts of peanut shell ash, 8 to 12 parts of mineral powder, 18 to 22 parts of silica fume, 18 to 22 parts of fly ash, 1 to 2 parts of polyethylene fiber, 40 to 50 parts of standard sand, 2 to 4 parts of a water reducing agent and 20 to 30 parts of water. The total amount of the cement and the peanut shell ash is 100 parts. Four volcanic ash active components, namely the mineral powder, the fly ash, the silica fume and the peanut shell ash, are synergistically used as a cement gelling system, so that on the premise of reducing the cement consumption, the interface bonding performance of the PE fiber and a cement matrix is improved, the toughening effect of the PE fiber is fully exerted, and the mechanical property and the crack resistance of ECC are improved. Along with the increase of the mixing amount of the peanut shell ash, the ductility index of the ECC is increased, and the strain rate is continuously increased. The maximum strain rate of the ECC test block can reach 9.25%.
本发明公开了一种利用花生壳灰制备的高延性纤维混凝土，包括以下质量份的组分：水泥80‑95份，花生壳灰5‑20份，矿粉8‑12份，硅灰18‑22份，粉煤灰18‑22份，聚乙烯纤维1‑2份，标准砂40‑50份，减水剂2‑4份，水20‑30份；所述水泥和花生壳灰的总用量为100份。本发明使用矿粉、粉煤灰、硅灰和花生壳灰四种火山灰活性成分协同作为水泥胶凝体系，在减少水泥用量的前提下，增加PE纤维和水泥基体界面粘结性能，充分发挥PE纤维的增韧效果，提升ECC的力学性能、抗裂性能。随着花生壳灰掺量的增加，ECC的延性指标增加，应变率不断变大。本发明中ECC试块的最大应变率可以达到9.25％。
High-ductility fiber concrete prepared from peanut shell ash
一种利用花生壳灰制备的高延性纤维混凝土
ZHENG YUANYUAN (author) / FAN QICHANG (author) / MENG DAN (author) / NIU WEIWEI (author)
2024-07-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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