材料导报
材料導報
재료도보
MATERIALS REVIEW
2015年
16期
115-119
,共5页
硫铁矿尾砂%可再分散乳胶粉%自流平砂浆%耐磨性
硫鐵礦尾砂%可再分散乳膠粉%自流平砂漿%耐磨性
류철광미사%가재분산유효분%자류평사장%내마성
pyrite tailings%redispersible polymer powders%self-leveling mortar%wear resistance
探究硫铁尾矿砂在自流平砂浆的资源化利用途径,以硫铁矿尾砂为细集料制备水泥基自流平砂浆,分析了可再分散乳胶粉掺量对砂浆流动度、力学性能及耐磨性的影响。结果表明：乳胶粉掺量可以显著降低20 min、60 min 后的流动度经时损失,乳胶粉掺量为2.0%时,砂浆的拉伸粘结强度为1.9 MPa,并在天然河砂与尾砂复配情况下,尾砂替代率为75%时,磨损量仅有0.09 kg/m2。
探究硫鐵尾礦砂在自流平砂漿的資源化利用途徑,以硫鐵礦尾砂為細集料製備水泥基自流平砂漿,分析瞭可再分散乳膠粉摻量對砂漿流動度、力學性能及耐磨性的影響。結果錶明：乳膠粉摻量可以顯著降低20 min、60 min 後的流動度經時損失,乳膠粉摻量為2.0%時,砂漿的拉伸粘結彊度為1.9 MPa,併在天然河砂與尾砂複配情況下,尾砂替代率為75%時,磨損量僅有0.09 kg/m2。
탐구류철미광사재자류평사장적자원화이용도경,이류철광미사위세집료제비수니기자류평사장,분석료가재분산유효분참량대사장류동도、역학성능급내마성적영향。결과표명：유효분참량가이현저강저20 min、60 min 후적류동도경시손실,유효분참량위2.0%시,사장적랍신점결강도위1.9 MPa,병재천연하사여미사복배정황하,미사체대솔위75%시,마손량부유0.09 kg/m2。
The resource utilization of pyrite tailings in self-leveling mortar was explored.Cement-based self-le-veling mortar was prepared using pyrite tailings as fine aggregate.The effects of polymer powders content on mortar fluidity,mechanical properties and wear resistance of self-leveling mortar was studied.Results indicate that polymer powders content can significantly reduce the loss fluidity after 20 min,60 min,the tensile bond strength of mortar was 1.9 MPa when polymer powders content were 2.0%,and the tailings replacement rate was 75% when river sand and tailings were admixed,the wear loss was only 0.09 kg/m2 .
