Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wood aggregate lightweight thermal insulation concrete and preparation process thereof
The invention discloses wood aggregate lightweight thermal insulation concrete and a preparation process thereof. The concrete comprises cement, fine aggregate, core-shell wood coarse aggregate, graphene suspension, a water reducing agent and water. The preparation method of the core-shell wood coarse aggregate and graphene suspension comprises the following steps: (I) soaking wood aggregate in an alcohol solution of a silane coupling agent, then taking out the wood aggregate, and washing the wood aggregate with the alcohol solution to obtain modified wood aggregate; and meanwhile, the flushing fluid is collected. (II) mixing cement, fly ash and an adsorbent solution generated by wet desulphurization and denitration to prepare slurry; and coating the surface of the modified wood aggregate with the slurry, and drying the modified wood aggregate to obtain the core-shell wood coarse aggregate. And (III) mixing graphene with the flushing fluid, and uniformly dispersing to obtain the graphene suspension. The problems that when the wood aggregate is directly added into the concrete, the concrete is easy to crack, the strength is reduced, and the prepared concrete is insufficient in weather resistance are solved.
本发明公开一种木质骨料轻质保温混凝土及其制备工艺。所述混凝土包括水泥、细骨料、核壳木质粗骨料、石墨烯悬浮液、减水剂和水。所述核壳木质粗骨料、石墨烯悬浮液的制备包括：(I)将木质骨料置于硅烷偶联剂的醇溶液中浸渍，然后取出木质骨料用醇液冲洗，得改性木质骨料；同时收集冲所得冲洗液。(II)将水泥、粉煤灰与湿法脱硫、脱硝产生的吸附剂溶液混合制成浆料。将所述浆料包覆在改性木质骨料表面，将其烘干后得到核壳木质粗骨料。(III)将石墨烯与所述冲洗液混合后分散均匀，即得石墨烯悬浮液。本发明克服了将木质骨料直接加到混凝土中时存在的易导致混凝土开裂、强度下降以及制备的混凝土耐候性不足的问题。
Wood aggregate lightweight thermal insulation concrete and preparation process thereof
The invention discloses wood aggregate lightweight thermal insulation concrete and a preparation process thereof. The concrete comprises cement, fine aggregate, core-shell wood coarse aggregate, graphene suspension, a water reducing agent and water. The preparation method of the core-shell wood coarse aggregate and graphene suspension comprises the following steps: (I) soaking wood aggregate in an alcohol solution of a silane coupling agent, then taking out the wood aggregate, and washing the wood aggregate with the alcohol solution to obtain modified wood aggregate; and meanwhile, the flushing fluid is collected. (II) mixing cement, fly ash and an adsorbent solution generated by wet desulphurization and denitration to prepare slurry; and coating the surface of the modified wood aggregate with the slurry, and drying the modified wood aggregate to obtain the core-shell wood coarse aggregate. And (III) mixing graphene with the flushing fluid, and uniformly dispersing to obtain the graphene suspension. The problems that when the wood aggregate is directly added into the concrete, the concrete is easy to crack, the strength is reduced, and the prepared concrete is insufficient in weather resistance are solved.
本发明公开一种木质骨料轻质保温混凝土及其制备工艺。所述混凝土包括水泥、细骨料、核壳木质粗骨料、石墨烯悬浮液、减水剂和水。所述核壳木质粗骨料、石墨烯悬浮液的制备包括：(I)将木质骨料置于硅烷偶联剂的醇溶液中浸渍，然后取出木质骨料用醇液冲洗，得改性木质骨料；同时收集冲所得冲洗液。(II)将水泥、粉煤灰与湿法脱硫、脱硝产生的吸附剂溶液混合制成浆料。将所述浆料包覆在改性木质骨料表面，将其烘干后得到核壳木质粗骨料。(III)将石墨烯与所述冲洗液混合后分散均匀，即得石墨烯悬浮液。本发明克服了将木质骨料直接加到混凝土中时存在的易导致混凝土开裂、强度下降以及制备的混凝土耐候性不足的问题。
Wood aggregate lightweight thermal insulation concrete and preparation process thereof
一种木质骨料轻质保温混凝土及其制备工艺
ZHOU XIAOLONG (Autor:in) / WANG LIANG (Autor:in) / CHEN MINGXU (Autor:in) / YUE GONGBING (Autor:in) / LI QIUYI (Autor:in) / GUO YUANXIN (Autor:in)
14.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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