Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for compounding, reinforcing and modifying recycled aggregate
The invention discloses a method for composite reinforced modification of recycled aggregate, which comprises a composite reinforced modification method using binding material reinforcement and chemical solution soaking reinforcement, and specifically comprises the following steps: firstly, carrying out composite cement slurry wrapping reinforced modification on the recycled aggregate by taking active minerals as admixtures; and secondly, carrying out secondary reinforcement, soaking the recycled aggregate by using a sodium silicate solution, a polyvinyl alcohol solution and a nano-silica sol solution as composite chemical solutions, and finally obtaining the modified recycled aggregate. The recycled aggregate is subjected to composite reinforcement by utilizing a composite reinforcement modification method of cementing material reinforcement and chemical solution soaking reinforcement, so that the water absorption rate of the recycled aggregate is reduced, the effect of the method is superior to that of a common single reinforcement mode, microcracks in the recycled aggregate are effectively filled, the surface of the recycled aggregate is modified and reinforced, and the service life of the recycled aggregate is prolonged. Therefore, the composite reinforced recycled aggregate has excellent mechanical properties and low water absorption rate.
本发明公开了一种复合强化改性再生骨料的方法，包括利用胶凝材料强化与化学溶液浸泡强化的复合强化改性方法，具体为：首先，对再生骨料进行以活性矿物为掺料的复合水泥浆液包裹强化改性；其次，进行二次强化，以硅酸钠溶液、聚乙烯醇溶液、纳米硅溶胶溶液为复合化学溶液对再生骨料进行浸泡，最后得到改性后的再生骨料。本发明利用胶凝材料强化与化学溶液浸泡强化的复合强化改性方法对再生骨料的进行复合强化，使再生骨料的吸水率降低，其效果优于普通单一的强化方式，不仅对再生骨料内部微裂纹进行有效填充并且对再生骨料表面进行改性强化，使得复合强化后的再生骨料具有优异的力学性能与低吸水率。
Method for compounding, reinforcing and modifying recycled aggregate
The invention discloses a method for composite reinforced modification of recycled aggregate, which comprises a composite reinforced modification method using binding material reinforcement and chemical solution soaking reinforcement, and specifically comprises the following steps: firstly, carrying out composite cement slurry wrapping reinforced modification on the recycled aggregate by taking active minerals as admixtures; and secondly, carrying out secondary reinforcement, soaking the recycled aggregate by using a sodium silicate solution, a polyvinyl alcohol solution and a nano-silica sol solution as composite chemical solutions, and finally obtaining the modified recycled aggregate. The recycled aggregate is subjected to composite reinforcement by utilizing a composite reinforcement modification method of cementing material reinforcement and chemical solution soaking reinforcement, so that the water absorption rate of the recycled aggregate is reduced, the effect of the method is superior to that of a common single reinforcement mode, microcracks in the recycled aggregate are effectively filled, the surface of the recycled aggregate is modified and reinforced, and the service life of the recycled aggregate is prolonged. Therefore, the composite reinforced recycled aggregate has excellent mechanical properties and low water absorption rate.
本发明公开了一种复合强化改性再生骨料的方法，包括利用胶凝材料强化与化学溶液浸泡强化的复合强化改性方法，具体为：首先，对再生骨料进行以活性矿物为掺料的复合水泥浆液包裹强化改性；其次，进行二次强化，以硅酸钠溶液、聚乙烯醇溶液、纳米硅溶胶溶液为复合化学溶液对再生骨料进行浸泡，最后得到改性后的再生骨料。本发明利用胶凝材料强化与化学溶液浸泡强化的复合强化改性方法对再生骨料的进行复合强化，使再生骨料的吸水率降低，其效果优于普通单一的强化方式，不仅对再生骨料内部微裂纹进行有效填充并且对再生骨料表面进行改性强化，使得复合强化后的再生骨料具有优异的力学性能与低吸水率。
Method for compounding, reinforcing and modifying recycled aggregate
一种复合强化改性再生骨料的方法
YANG RUXIAN (Autor:in) / YANG LIN (Autor:in) / FANG YANWEI (Autor:in) / LUO YUN (Autor:in) / ZHAN WEN (Autor:in) / LI HONGJUN (Autor:in) / SUN WU (Autor:in) / SUN YUQIU (Autor:in) / ZHANG SI (Autor:in) / YE XIANSONG (Autor:in)
23.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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