Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-corrosion-resistance concrete as well as preparation method and application thereof
The invention discloses concrete with high corrosion resistance. The concrete is prepared from the following components in parts by weight: 100 parts of cement, 100 to 125 parts of modified carbide slag powder, 125 to 250 parts of III-grade fly ash, 20 to 50 parts of sodium hydroxide, 250 to 295 parts of water glass, 600 to 900 parts of ordinary sand, 700 to 1200 parts of stone, 5 to 30 parts of silver-containing wastewater and 5 to 50 parts of water, the modified carbide slag powder is obtained by calcining and grinding waste residues taking calcium hydroxide as a main component after acetylene gas is obtained by hydrolyzing calcium carbide; the calcining temperature is 500 to 600 DEG C, and the calcining time is 30 to 120 minutes; the average particle diameter is 20-50 [mu] m; the modified carbide slag powder comprises the following chemical components in percentage by weight: 60 to 90 percent of CaO, 0 to 30 percent of Ca (OH) 2, 1 to 2 percent of MgO, 5 to 10 percent of SiO2, 0.5 to 2.0 percent of Fe2O3 and 0.1 to 1.0 percent of Al2O3; according to the method, the III-grade fly ash, the carbide slag and the silver-containing wastewater are subjected to resource utilization, and the chloride ion penetration resistance of the concrete is greatly improved by improving the strength development and compensation shrinkage of the concrete.
本发明公开了一种高抗腐蚀性混凝土，按重量份数计如下：水泥100份，改性电石渣粉100‑125份，Ⅲ级粉煤灰125‑250份，氢氧化钠20‑50份，水玻璃250‑295份，普通砂600‑900份，石子700‑1200份，含银废水5‑30份，水5‑50份；所述改性电石渣粉为电石水解获取乙炔气后以氢氧化钙为主要成分的废渣煅烧、研磨获得；煅烧温度为500‑600℃，煅烧时间为30‑120min；平均颗粒直径为20‑50μm；所述改性电石渣粉化学成分中CaO为60‑90％，Ca(OH)2为0‑30％，MgO为1‑2％，SiO2为5‑10％，Fe2O3为0.5％‑2.0％，Al2O3为0.1％‑1.0％；本发明对Ⅲ级粉煤灰、电石渣、含银废水进行资源化利用，通过提高混凝土的强度发展及补偿收缩极大提高混凝土的的抗氯离子渗透性能。
High-corrosion-resistance concrete as well as preparation method and application thereof
The invention discloses concrete with high corrosion resistance. The concrete is prepared from the following components in parts by weight: 100 parts of cement, 100 to 125 parts of modified carbide slag powder, 125 to 250 parts of III-grade fly ash, 20 to 50 parts of sodium hydroxide, 250 to 295 parts of water glass, 600 to 900 parts of ordinary sand, 700 to 1200 parts of stone, 5 to 30 parts of silver-containing wastewater and 5 to 50 parts of water, the modified carbide slag powder is obtained by calcining and grinding waste residues taking calcium hydroxide as a main component after acetylene gas is obtained by hydrolyzing calcium carbide; the calcining temperature is 500 to 600 DEG C, and the calcining time is 30 to 120 minutes; the average particle diameter is 20-50 [mu] m; the modified carbide slag powder comprises the following chemical components in percentage by weight: 60 to 90 percent of CaO, 0 to 30 percent of Ca (OH) 2, 1 to 2 percent of MgO, 5 to 10 percent of SiO2, 0.5 to 2.0 percent of Fe2O3 and 0.1 to 1.0 percent of Al2O3; according to the method, the III-grade fly ash, the carbide slag and the silver-containing wastewater are subjected to resource utilization, and the chloride ion penetration resistance of the concrete is greatly improved by improving the strength development and compensation shrinkage of the concrete.
本发明公开了一种高抗腐蚀性混凝土，按重量份数计如下：水泥100份，改性电石渣粉100‑125份，Ⅲ级粉煤灰125‑250份，氢氧化钠20‑50份，水玻璃250‑295份，普通砂600‑900份，石子700‑1200份，含银废水5‑30份，水5‑50份；所述改性电石渣粉为电石水解获取乙炔气后以氢氧化钙为主要成分的废渣煅烧、研磨获得；煅烧温度为500‑600℃，煅烧时间为30‑120min；平均颗粒直径为20‑50μm；所述改性电石渣粉化学成分中CaO为60‑90％，Ca(OH)2为0‑30％，MgO为1‑2％，SiO2为5‑10％，Fe2O3为0.5％‑2.0％，Al2O3为0.1％‑1.0％；本发明对Ⅲ级粉煤灰、电石渣、含银废水进行资源化利用，通过提高混凝土的强度发展及补偿收缩极大提高混凝土的的抗氯离子渗透性能。
High-corrosion-resistance concrete as well as preparation method and application thereof
一种高抗腐蚀性混凝土及其制备方法和应用
WANG ZIJIE (Autor:in) / ZHANG YUAN (Autor:in) / WANG JUN (Autor:in) / LU JIALIN (Autor:in) / LIU DONG (Autor:in) / ZHANG ZHUOXIANG (Autor:in) / YUAN WENTAO (Autor:in)
02.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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