建材世界
建材世界
건재세계
The World of Building Materials
2015年
5期
15-19
,共5页
钢渣%泡沫混凝土%抗压强度%干体积密度%吸水率
鋼渣%泡沫混凝土%抗壓彊度%榦體積密度%吸水率
강사%포말혼응토%항압강도%간체적밀도%흡수솔
slag%foamed concrete%compression strength%thermal conductivity%water absorption
为探索钢渣的低能耗资源化利用途径,该文以钢渣作为集料,对使用不同级配和不同掺量钢渣集料的泡沫混凝土的基本性能进行试验研究。试验中采用了5种不同钢渣级配和5个钢渣掺量等级(10%~50%)用作泡沫混凝土的集料,从抗压强度、吸水率和干体积密度3个方面对其综合性能进行测试。试验结果表明：钢渣作为集料会增大泡沫混凝土干密度及吸水率,且混凝土强度均呈先增后减趋势,当钢渣粒径定为0.3 mm,掺量在30%时强度达到最大。同时,随着钢渣粒径的增大和掺量的增加,泡沫混凝土后期强度变化率均增大,这说明钢渣与水泥之间具有协同作用,有利于促进水化反应,一定程度上提高了钢渣泡沫混凝土的强度。
為探索鋼渣的低能耗資源化利用途徑,該文以鋼渣作為集料,對使用不同級配和不同摻量鋼渣集料的泡沫混凝土的基本性能進行試驗研究。試驗中採用瞭5種不同鋼渣級配和5箇鋼渣摻量等級(10%~50%)用作泡沫混凝土的集料,從抗壓彊度、吸水率和榦體積密度3箇方麵對其綜閤性能進行測試。試驗結果錶明：鋼渣作為集料會增大泡沫混凝土榦密度及吸水率,且混凝土彊度均呈先增後減趨勢,噹鋼渣粒徑定為0.3 mm,摻量在30%時彊度達到最大。同時,隨著鋼渣粒徑的增大和摻量的增加,泡沫混凝土後期彊度變化率均增大,這說明鋼渣與水泥之間具有協同作用,有利于促進水化反應,一定程度上提高瞭鋼渣泡沫混凝土的彊度。
위탐색강사적저능모자원화이용도경,해문이강사작위집료,대사용불동급배화불동참량강사집료적포말혼응토적기본성능진행시험연구。시험중채용료5충불동강사급배화5개강사참량등급(10%~50%)용작포말혼응토적집료,종항압강도、흡수솔화간체적밀도3개방면대기종합성능진행측시。시험결과표명：강사작위집료회증대포말혼응토간밀도급흡수솔,차혼응토강도균정선증후감추세,당강사립경정위0.3 mm,참량재30%시강도체도최대。동시,수착강사립경적증대화참량적증가,포말혼응토후기강도변화솔균증대,저설명강사여수니지간구유협동작용,유리우촉진수화반응,일정정도상제고료강사포말혼응토적강도。
In order to explore the utilization of slag with low-power approach,the basic performance of foamed con-crete used steel slag as aggregates with different gradations and dosage was investigated in this paper.Five different slag gradation and five steel slag content levels (10%-50%)used as the foamed concrete aggregate in experiment,and the compressive strength,water absorption and dry bulk density were tested and analyzed.The results showed that steel slag aggregates will increase the dry density and water absorption of the foamed concrete.The concrete strength will decrease after the first increase phase and showed the maximum strength when the steel slag particle size is around 0.3 mm and the 30% dosage of steel slag.Meanwhile,with the increase of steel slag dosage and particle size,the change rate of the late strength of foamed concrete increases.The results indicated that there is a synergistic effect between the steel slag and cement which promotes the hydration reaction,to some extent,which improves the strength of steel slag foamed concrete.
