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A platform for research: civil engineering, architecture and urbanism
High polymer environment-friendly recycled concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses high polymer environment-friendly recycled concrete and a preparation method thereof. The high polymer environment-friendly recycled concrete is prepared from, by weight, 200-320 parts of cement, 120-240 parts of fly ash, 650-950 parts of modified recycled coarse aggregate, 400-600 parts of fine aggregate, 5-15 parts of composite fibers, 5-12 parts of a water reducing agent and 120-220 parts of water, wherein the modified recycled coarse aggregate is prepared from a modification liquid and waste concrete; and the modification liquid is prepared from a polyvinyl alcohol solution, silica fume and a silane coupling agent, the polyvinyl alcohol solution accounts for 25 to 35 parts by weight, the silica fume accounts for 20 to 30 parts by weight, and the silane coupling agent accounts for 8 to 15 parts by weight. The high polymer environment-friendly recycled concrete disclosed by the invention has relatively low porosity and relatively high compressive strength.
本申请涉及混凝土领域，具体公开了一种高聚物环保再生混凝土及其制备方法，所述高聚物环保再生混凝土包括如下重量份的原料：水泥200‑320份、粉煤灰120‑240份、改性再生粗集料650‑950份、细集料400‑600份、复合纤维5‑15份、减水剂5‑12份、水120‑220份；所述改性再生粗集料由改性液和废旧混凝土制得；所述改性液由聚乙烯醇溶液、微硅粉和硅烷偶联剂制得，其添加的重量份如下：聚乙烯醇溶液25‑35份、微硅粉20‑30份、硅烷偶联剂8‑15份；本申请的高聚物环保再生混凝土具有较低的孔隙率和较高的抗压强度。
High polymer environment-friendly recycled concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses high polymer environment-friendly recycled concrete and a preparation method thereof. The high polymer environment-friendly recycled concrete is prepared from, by weight, 200-320 parts of cement, 120-240 parts of fly ash, 650-950 parts of modified recycled coarse aggregate, 400-600 parts of fine aggregate, 5-15 parts of composite fibers, 5-12 parts of a water reducing agent and 120-220 parts of water, wherein the modified recycled coarse aggregate is prepared from a modification liquid and waste concrete; and the modification liquid is prepared from a polyvinyl alcohol solution, silica fume and a silane coupling agent, the polyvinyl alcohol solution accounts for 25 to 35 parts by weight, the silica fume accounts for 20 to 30 parts by weight, and the silane coupling agent accounts for 8 to 15 parts by weight. The high polymer environment-friendly recycled concrete disclosed by the invention has relatively low porosity and relatively high compressive strength.
本申请涉及混凝土领域，具体公开了一种高聚物环保再生混凝土及其制备方法，所述高聚物环保再生混凝土包括如下重量份的原料：水泥200‑320份、粉煤灰120‑240份、改性再生粗集料650‑950份、细集料400‑600份、复合纤维5‑15份、减水剂5‑12份、水120‑220份；所述改性再生粗集料由改性液和废旧混凝土制得；所述改性液由聚乙烯醇溶液、微硅粉和硅烷偶联剂制得，其添加的重量份如下：聚乙烯醇溶液25‑35份、微硅粉20‑30份、硅烷偶联剂8‑15份；本申请的高聚物环保再生混凝土具有较低的孔隙率和较高的抗压强度。
High polymer environment-friendly recycled concrete and preparation method thereof
一种高聚物环保再生混凝土及其制备方法
LIU XINCHUN (author) / WU WENQIANG (author)
2022-01-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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