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A platform for research: civil engineering, architecture and urbanism
Self-compacting concrete prepared from superfine tailing sand
The invention relates to the technical field of concrete preparation, in particular to self-compacting concrete prepared from superfine tailing sand. The anti-freezing concrete is prepared from the following components in parts by weight: 70 to 85 parts of cement, 30 to 40 parts of fly ash, 100 to 120 parts of fine aggregate, 145 to 165 parts of coarse aggregate, 1.5 to 2 parts of styrene-acrylic emulsion, 0.8 to 1.1 parts of PVA fiber, 0.7 to 0.8 part of sodium alginate, 0.8 to 1.0 part of talcum powder, 0.7 to 0.8 part of water reducing agent, 29 to 33 parts of water and 12 to 17 parts of anti-freezing combination agent. Compared with the prior art, not only can the anti-freezing capability of the self-compacting concrete be improved, but also the problem of surface cracking of the self-compacting concrete can be improved.
本发明涉及混凝土制备技术领域，尤其涉及一种特细尾矿砂制备的自密实混凝土，按照重量份包括以下组分：水泥70‑85份、粉煤灰30‑40份、细骨料100‑120份、粗骨料145‑165份、苯丙乳液1.5‑2份、PVA纤维0.8‑1.1份、海藻酸钠0.7‑0.8份、滑石粉0.8‑1.0份、减水剂0.7‑0.8份、水29‑33份以及抗冻组合剂12‑17份。相比于现有技术，本发明不仅可以提高自密实混凝土的防冻能力，而且还能改善其表面龟裂的问题。
Self-compacting concrete prepared from superfine tailing sand
The invention relates to the technical field of concrete preparation, in particular to self-compacting concrete prepared from superfine tailing sand. The anti-freezing concrete is prepared from the following components in parts by weight: 70 to 85 parts of cement, 30 to 40 parts of fly ash, 100 to 120 parts of fine aggregate, 145 to 165 parts of coarse aggregate, 1.5 to 2 parts of styrene-acrylic emulsion, 0.8 to 1.1 parts of PVA fiber, 0.7 to 0.8 part of sodium alginate, 0.8 to 1.0 part of talcum powder, 0.7 to 0.8 part of water reducing agent, 29 to 33 parts of water and 12 to 17 parts of anti-freezing combination agent. Compared with the prior art, not only can the anti-freezing capability of the self-compacting concrete be improved, but also the problem of surface cracking of the self-compacting concrete can be improved.
本发明涉及混凝土制备技术领域，尤其涉及一种特细尾矿砂制备的自密实混凝土，按照重量份包括以下组分：水泥70‑85份、粉煤灰30‑40份、细骨料100‑120份、粗骨料145‑165份、苯丙乳液1.5‑2份、PVA纤维0.8‑1.1份、海藻酸钠0.7‑0.8份、滑石粉0.8‑1.0份、减水剂0.7‑0.8份、水29‑33份以及抗冻组合剂12‑17份。相比于现有技术，本发明不仅可以提高自密实混凝土的防冻能力，而且还能改善其表面龟裂的问题。
Self-compacting concrete prepared from superfine tailing sand
一种特细尾矿砂制备的自密实混凝土
NIE LIANGGUO (author) / ZHOU JINJIN (author) / WEI GONGLEI (author) / SONG LONG (author) / TIAN XINNING (author)
2022-06-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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