造纸厂绿泥在水泥基材料中的应用研究
首发时间:2015-07-10
摘要:本文研究了掺入绿泥对水泥净浆的凝结时间、强度以及泛霜现象的影响,探讨水洗处理绿泥对掺绿泥净浆泛霜程度的影响。结果表明,可以通过简易的水洗处理,除去绿泥中的大部分可溶性盐,从而解决由于掺绿泥带来的泛霜问题;可以通过改变绿泥的掺量来调节净浆的凝结时间,适当的绿泥掺量条件下净浆的抗压强度并无明显下降,这表明可将适量绿泥掺入混凝土中,从而降低混凝土的生产成本,同时也达到回收利用绿泥的目的。
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Study on using green mud from paper mill in cement-based materials
Abstract:This paper investigated the influence of green mud on the setting time, strength and efflorescence of cement paste, as well as the effect of water washing treatment on the degree of efflorescence of paste containing green mud. Results showed that most of the soluble salt in green mud could be removed by a simple water washing method, which indicated that efflorescence problem led by green mud could be solved by this method. It was also showed that the setting time of the pastes was adjusted by changing the content of green mud. By adding a certain amount of green mud, there was no severe loss in the compressive strength of the hardened pastes. Hence, by adding a suitable amount of green mud in concrete can reduce the production cost of concrete and also achieve the goal of recycling green mud.
Keywords: Green mud Autoclaved bricks Efflorescence Water treatment Compressive strength
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