Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Solid-waste-based low-alkalinity porous ecological pervious concrete and preparation method thereof
The invention discloses solid-waste-based low-alkalinity porous ecological pervious concrete and a preparation method thereof, and the solid-waste-based low-alkalinity porous ecological pervious concrete is prepared from the following raw materials in parts by mass: 10-20 parts of a low-alkalinity cementing material, 75-85 parts of tunneling gangue aggregate, 0.1-0.2 part of an adhesive, 0.03-0.04 part of a water reducing agent and 3.0-4.5 parts of water; the low-alkalinity cementing material is composed of a solid waste-based sulphoaluminate cementing material, mixed stone powder and desulfurized gypsum in a mass ratio of (75-85): (10-20): (3-5), and the mixed stone powder is a mixture of red gangue powder and waste stone powder. The preparation method comprises the following steps: stirring and mixing the tunneling gangue aggregate, a part of the tunneling gangue aggregate and a part of water, then adding the adhesive, the water reducing agent, the rest of the tunneling gangue aggregate and the rest of water, and continuously performing stirring and mixing. The pH value of the concrete can be compatible with the pH value of a soil environment required by normal growth of plants, and the cost of the ecological concrete can be greatly reduced.
本发明公开了一种固废基低碱度多孔生态透水混凝土及其制备方法，按质量份数计，由以下原料组成：低碱度胶凝材料10～20份，掘进矸石骨料75～85份，粘合剂0.1～0.2份，减水剂0.03～0.04份，水3.0～4.5份；低碱度胶凝材料由固废基硫铝酸盐胶凝材料、混合石粉、脱硫石膏以质量比75～85：10～20：3～5组成，混合石粉为红矸石粉与废石粉的混合物。制备方法为：将掘进矸石骨料、一部分掘进矸石骨料、一部分水进行搅拌混合，然后加入粘合剂、减水剂、剩余掘进矸石骨料及剩余水继续搅拌混合获得。本发明不仅能够使混凝土的pH值与植物正常生长所需要的土壤环境pH值相容，而且能够大大降低生态混凝土的成本。
Solid-waste-based low-alkalinity porous ecological pervious concrete and preparation method thereof
The invention discloses solid-waste-based low-alkalinity porous ecological pervious concrete and a preparation method thereof, and the solid-waste-based low-alkalinity porous ecological pervious concrete is prepared from the following raw materials in parts by mass: 10-20 parts of a low-alkalinity cementing material, 75-85 parts of tunneling gangue aggregate, 0.1-0.2 part of an adhesive, 0.03-0.04 part of a water reducing agent and 3.0-4.5 parts of water; the low-alkalinity cementing material is composed of a solid waste-based sulphoaluminate cementing material, mixed stone powder and desulfurized gypsum in a mass ratio of (75-85): (10-20): (3-5), and the mixed stone powder is a mixture of red gangue powder and waste stone powder. The preparation method comprises the following steps: stirring and mixing the tunneling gangue aggregate, a part of the tunneling gangue aggregate and a part of water, then adding the adhesive, the water reducing agent, the rest of the tunneling gangue aggregate and the rest of water, and continuously performing stirring and mixing. The pH value of the concrete can be compatible with the pH value of a soil environment required by normal growth of plants, and the cost of the ecological concrete can be greatly reduced.
本发明公开了一种固废基低碱度多孔生态透水混凝土及其制备方法，按质量份数计，由以下原料组成：低碱度胶凝材料10～20份，掘进矸石骨料75～85份，粘合剂0.1～0.2份，减水剂0.03～0.04份，水3.0～4.5份；低碱度胶凝材料由固废基硫铝酸盐胶凝材料、混合石粉、脱硫石膏以质量比75～85：10～20：3～5组成，混合石粉为红矸石粉与废石粉的混合物。制备方法为：将掘进矸石骨料、一部分掘进矸石骨料、一部分水进行搅拌混合，然后加入粘合剂、减水剂、剩余掘进矸石骨料及剩余水继续搅拌混合获得。本发明不仅能够使混凝土的pH值与植物正常生长所需要的土壤环境pH值相容，而且能够大大降低生态混凝土的成本。
Solid-waste-based low-alkalinity porous ecological pervious concrete and preparation method thereof
一种固废基低碱度多孔生态透水混凝土及其制备方法
WU CHANGLIANG (Autor:in) / WANG WENLONG (Autor:in) / ZHANG CHAO (Autor:in) / JIANG WEN (Autor:in) / WANG XUJIANG (Autor:in) / LI JINGWEI (Autor:in) / MAO YANPENG (Autor:in) / SUN JING (Autor:in) / ZHAO XIQIANG (Autor:in) / SONG ZHANLONG (Autor:in)
07.05.2021
Patent
Elektronische Ressource
Chinesisch
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