混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2014年
9期
79-82
,共4页
姚翔%林长农%邓敏%阳勇福%曹黎颖
姚翔%林長農%鄧敏%暘勇福%曹黎穎
요상%림장농%산민%양용복%조려영
钢渣%胶凝性能%钢渣将体%钢渣水泥浆体%激发剂
鋼渣%膠凝性能%鋼渣將體%鋼渣水泥漿體%激髮劑
강사%효응성능%강사장체%강사수니장체%격발제
Steel slag%Cementitious properties%Steel slag slurry%Steel slag cement slurry%Activator
分析了转炉钢渣的矿物组成和胶凝性能，研究了Na2SO4、CaCl2、NaCl和海水对钢渣浆体和钢渣水泥浆体强度的影响。结果表明，钢渣粉3d的水化放热量仅为P·O 42.5水泥的7.5%，钢渣浆体7d和90d抗压强度只有0MPa和15.1MPa，所以钢渣粉自身水化能力很低，胶凝性很差。 Na2SO4和CaCl2对于钢渣浆体有一定的激发效果，掺0.9%Na2SO4时激发效果最好，浆体3d和90d抗压强度比不掺激发剂的空白组提高了19.1%和8.2%。对于钢渣水泥浆体，掺1.2%CaCl2的浆体强度最高，浆体3d和90d抗压强度分别比空白组提高了53.6%和16.9%。 NaCl和海水对钢渣浆体和钢渣水泥浆体3d强度有明显的激发作用，但会使90d强度出现较明显的倒缩。
分析瞭轉爐鋼渣的礦物組成和膠凝性能，研究瞭Na2SO4、CaCl2、NaCl和海水對鋼渣漿體和鋼渣水泥漿體彊度的影響。結果錶明，鋼渣粉3d的水化放熱量僅為P·O 42.5水泥的7.5%，鋼渣漿體7d和90d抗壓彊度隻有0MPa和15.1MPa，所以鋼渣粉自身水化能力很低，膠凝性很差。 Na2SO4和CaCl2對于鋼渣漿體有一定的激髮效果，摻0.9%Na2SO4時激髮效果最好，漿體3d和90d抗壓彊度比不摻激髮劑的空白組提高瞭19.1%和8.2%。對于鋼渣水泥漿體，摻1.2%CaCl2的漿體彊度最高，漿體3d和90d抗壓彊度分彆比空白組提高瞭53.6%和16.9%。 NaCl和海水對鋼渣漿體和鋼渣水泥漿體3d彊度有明顯的激髮作用，但會使90d彊度齣現較明顯的倒縮。
분석료전로강사적광물조성화효응성능，연구료Na2SO4、CaCl2、NaCl화해수대강사장체화강사수니장체강도적영향。결과표명，강사분3d적수화방열량부위P·O 42.5수니적7.5%，강사장체7d화90d항압강도지유0MPa화15.1MPa，소이강사분자신수화능력흔저，효응성흔차。 Na2SO4화CaCl2대우강사장체유일정적격발효과，참0.9%Na2SO4시격발효과최호，장체3d화90d항압강도비불참격발제적공백조제고료19.1%화8.2%。대우강사수니장체，참1.2%CaCl2적장체강도최고，장체3d화90d항압강도분별비공백조제고료53.6%화16.9%。 NaCl화해수대강사장체화강사수니장체3d강도유명현적격발작용，단회사90d강도출현교명현적도축。
The mineral composition and cementitious properties of the converter steel slag are analyzed. The influence of Na2SO4, CaCl2, NaCl and seawater on the strength of steel slag slurry and steel slag cement slurry is evaluated. The re-sults show that the hydration heat of steel slag powder is only 7.5% of P·O 42.5 cement at 3 days, and the compressive strength of steel slag slurry is 0MPa at 7 days and 15.1MPa at 90 days. So converter steel slag has low potential hydraulic property and poor cementitious activity. Na2SO4, CaCl2, NaCl and seawater may promote the early strength of steel slag slurry and steel slag cement slurry. Na2SO4 and CaCl2 had good activation effects on the steel slag slurry. CaCl2 is the most effective activator and the compressive strength of steel slag cement slurry added with 1.2% CaCl2 is increased by 19.1%at 3 days and 8.2%at 90 days respectively. The strength of steel slag cement slurry is the highest when the slurry is added with 1.2% CaCl2 and the compressive strength is increased by 53.6% at 3 days and 16.9% at 90 days respectively. NaCl and seawater have significant activation on the strength of steel slag slurry and steel slag cement slurry at 3 days, however the strength at 90 days decreases remarkably.
