混凝土
混凝土
혼응토
CONCRETE
2015年
7期
104-106,110
,共4页
干混抹灰砂浆%砂的类型%砂的细度模数%砂的级配%砂浆性能
榦混抹灰砂漿%砂的類型%砂的細度模數%砂的級配%砂漿性能
간혼말회사장%사적류형%사적세도모수%사적급배%사장성능
dry mixed plastering mortar%sand types%sand fineness modulus%sand graduation%mortar properties
对4种不同性质的砂对干混抹灰砂浆的性能影响进行了试验研究。研究结果表明：在相同配合比条件下，细度模数2．8的机制砂抹灰砂浆不好施工（分层度大），但强度最高；细度模数1．6的细砂抹灰砂浆好施工（分层度小），但强度最低，收缩率最大；当河砂和混合砂细度模数均为2．3时，混合砂抹灰砂浆比河砂抹灰砂浆施工性更好，强度更高，这可能是混合砂比河砂的级配和表面性质更好的原因。结论是作为抹灰砂浆中砂应该级配良好并且细度模数在2．3左右为宜，并且混合砂比河砂更好。
對4種不同性質的砂對榦混抹灰砂漿的性能影響進行瞭試驗研究。研究結果錶明：在相同配閤比條件下，細度模數2．8的機製砂抹灰砂漿不好施工（分層度大），但彊度最高；細度模數1．6的細砂抹灰砂漿好施工（分層度小），但彊度最低，收縮率最大；噹河砂和混閤砂細度模數均為2．3時，混閤砂抹灰砂漿比河砂抹灰砂漿施工性更好，彊度更高，這可能是混閤砂比河砂的級配和錶麵性質更好的原因。結論是作為抹灰砂漿中砂應該級配良好併且細度模數在2．3左右為宜，併且混閤砂比河砂更好。
대4충불동성질적사대간혼말회사장적성능영향진행료시험연구。연구결과표명：재상동배합비조건하，세도모수2．8적궤제사말회사장불호시공（분층도대），단강도최고；세도모수1．6적세사말회사장호시공（분층도소），단강도최저，수축솔최대；당하사화혼합사세도모수균위2．3시，혼합사말회사장비하사말회사장시공성경호，강도경고，저가능시혼합사비하사적급배화표면성질경호적원인。결론시작위말회사장중사응해급배량호병차세도모수재2．3좌우위의，병차혼합사비하사경호。
Experimental study on the effect of the four types of sands with various performances on the properties of dry-mixed plas-tering mortar was carried on. The results show that under the same mix proportion condition,the plastering mortar prepared by the ma-chine-made sand with fineness modulus of 2.8 has had construct property because of high coursing degree of mortar while highest compressive strength. The plastering mortar prepared by the river sand with fineness modulus of 1.6 has excellent construct property be-cause of low coursing degree of mortar while lowest compressive strength and maximum shrinking percentage. The plastering mortars were prepared by the river sand and mixing sand with fineness modulus of 2.3 respectively,the latter has better construct property and higher compressive strength than that of the former,which can be explained that the graduation of mixing sand is better than that of the river sand. This is a conclusion that the sand used for the plastering mortar should have excellent sand graduation and fineness modulus of 2.3,and mixed sand is better than river sand.
