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浅析2013年速凝剂的发展现状
<< 返回 >>   发布时间:2013-8-23

浅析2013年速凝剂的发展现状
   速凝剂是一种水泥外加剂,速凝剂加入混凝土后,其主要成分中的铝酸钠、碳酸钠在碱性溶液中迅速与水泥中的石膏反应形成硫酸钠,使石膏丧失其原有的缓凝作用,导致铝酸钙矿物迅速水化,并在溶液中析出其水化产物晶体,从而使水泥混凝土迅速凝结。
   Accelerator is a kind of cement admixture, accelerator with concrete, sodium aluminate, sodium carbonate and its main components in alkaline solution rapidly reacts with gypsum in cement to form sodium sulfate, the gypsum lost its retarding effect, resulting in calcium aluminate minerals rapid hydration, and in solution the hydration products of cement concrete crystal, so that the rapid condensation.
   速凝剂目前广泛用于国防、煤炭、铁路、水电、地质的地下遂道工程及矿井下巷道中的支护工程等。
   The accelerator is now widely used in national defense, coal roadway underground tunnel engineering, railway, hydropower, geology and mine in the supporting engineering etc..
   速凝剂按产品形态,可分为粉状和液体,按其碱含量来分,可分为有碱和无碱或者低碱。目前我国常用的速凝剂主要是无机盐。速凝剂从产量来说,除高效减水剂,高性能减水剂,膨胀剂外,产品居各种外加剂的第四位。
   Accelerator according to the product shape, can be divided into powder and liquid, according to the content of alkali to points, can be divided into alkali and alkali free or low alkali. At present our country common accelerator is mainly inorganic salt. Accelerator from the output, in addition to high efficiency water reducing agent, superplasticizer, expansive agent, products in the various additives fourth.
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