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A platform for research: civil engineering, architecture and urbanism
Preparation process and application of high-toughness fiber-reinforced recycled aggregate concrete
The invention discloses a preparation process and application of high-toughness fiber-reinforced recycled aggregate concrete, and the preparation process comprises the following steps: (1) heating and leaching boric sludge with an acid solution, adding carbide slag, adding an alkali solution to adjust the system to be neutral or alkaline, standing, separating out a solid phase, calcining, grinding the obtained calcined product, and drying to obtain the high-toughness fiber-reinforced recycled aggregate concrete; the expansion type micropore anchoring micro powder is obtained. And (2) adding chopped organic fibers, a silane coupling agent and the expanded microporous anchoring micro-powder into absolute ethyl alcohol for reaction, then separating out the fibers, and airing the fibers to obtain the modified fibers. (3) taking the following raw materials: cement, composite coarse aggregate, river sand fine aggregate, the modified fiber, mineral powder and a water reducing agent; the composite coarse aggregate is formed by natural coarse aggregate and reinforced recycled coarse aggregate. The concrete material is obtained by uniformly mixing the raw materials with water. By treating the fibers and the recycled aggregate, the mechanical property of the concrete material prepared from the recycled aggregate is effectively overcome.
本发明公开一种高韧性纤维增强再生骨料混凝土的制备工艺及其应用，包括步骤：（1）用酸液对硼泥加热浸提，完成后先加入电石渣，再加入碱液将体系调节至中性或碱性，静置后分离出固相进行煅烧处理，然后将得到的煅烧产物粉磨，即得膨胀型微孔锚固微粉。（2）将短切有机纤维、硅烷偶联剂和所述膨胀型微孔锚固微粉加到无水乙醇中反应，然后分离出所述纤维晾干，即得改性纤维。（3）取如下原料：水泥、复合粗骨料、河沙细骨料、所述改性纤维、矿粉、减水剂；所述复合粗骨料由天然粗骨料与强化再生粗骨料形成。将上述原料与水混合均匀，即得混凝土材料。本发明通过对纤维和再生骨料的处理，有效克服了再生骨料制备的混凝土材料的力学性能。
Preparation process and application of high-toughness fiber-reinforced recycled aggregate concrete
The invention discloses a preparation process and application of high-toughness fiber-reinforced recycled aggregate concrete, and the preparation process comprises the following steps: (1) heating and leaching boric sludge with an acid solution, adding carbide slag, adding an alkali solution to adjust the system to be neutral or alkaline, standing, separating out a solid phase, calcining, grinding the obtained calcined product, and drying to obtain the high-toughness fiber-reinforced recycled aggregate concrete; the expansion type micropore anchoring micro powder is obtained. And (2) adding chopped organic fibers, a silane coupling agent and the expanded microporous anchoring micro-powder into absolute ethyl alcohol for reaction, then separating out the fibers, and airing the fibers to obtain the modified fibers. (3) taking the following raw materials: cement, composite coarse aggregate, river sand fine aggregate, the modified fiber, mineral powder and a water reducing agent; the composite coarse aggregate is formed by natural coarse aggregate and reinforced recycled coarse aggregate. The concrete material is obtained by uniformly mixing the raw materials with water. By treating the fibers and the recycled aggregate, the mechanical property of the concrete material prepared from the recycled aggregate is effectively overcome.
本发明公开一种高韧性纤维增强再生骨料混凝土的制备工艺及其应用，包括步骤：（1）用酸液对硼泥加热浸提，完成后先加入电石渣，再加入碱液将体系调节至中性或碱性，静置后分离出固相进行煅烧处理，然后将得到的煅烧产物粉磨，即得膨胀型微孔锚固微粉。（2）将短切有机纤维、硅烷偶联剂和所述膨胀型微孔锚固微粉加到无水乙醇中反应，然后分离出所述纤维晾干，即得改性纤维。（3）取如下原料：水泥、复合粗骨料、河沙细骨料、所述改性纤维、矿粉、减水剂；所述复合粗骨料由天然粗骨料与强化再生粗骨料形成。将上述原料与水混合均匀，即得混凝土材料。本发明通过对纤维和再生骨料的处理，有效克服了再生骨料制备的混凝土材料的力学性能。
Preparation process and application of high-toughness fiber-reinforced recycled aggregate concrete
一种高韧性纤维增强再生骨料混凝土的制备工艺及其应用
WU DINGYUAN (author) / XU LISHENG (author) / YUAN XUEGONG (author) / SUN YI (author) / TIAN XIAOLU (author) / WANG DOUDOU (author) / WANG LIANG (author) / ZHU ZHEN (author)
2024-11-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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