混凝土
混凝土
혼응토
CONCRETE
2014年
11期
53-55
,共3页
废旧橡胶%混凝土%含气量%坍落度
廢舊橡膠%混凝土%含氣量%坍落度
폐구상효%혼응토%함기량%담락도
waste rubber%concrete%air content%slump
以C45普通混凝土为基准，用橡胶颗粒等体积取代细骨料制成橡胶混凝土，橡胶颗粒粒径分为5~8目、30~40目和60~80目三种，橡胶颗粒掺量分为5%、10%和15%三种。通过试验测定了不同配合比橡胶混凝土的含气量和坍落度，探讨了混凝土含气量和坍落度随橡胶颗粒粒径及掺量不同的变化规律。研究结果表明：橡胶颗粒的掺入起到了一定的引气作用，且橡胶颗粒掺量越大、粒径越小引气效果越明显；5~8目橡胶颗粒的掺入增大了混凝土的坍落度，且掺量越大增加效果越明显，而30~40目和60~80目橡胶颗粒的掺入使混凝土的坍落度先增加再减小。
以C45普通混凝土為基準，用橡膠顆粒等體積取代細骨料製成橡膠混凝土，橡膠顆粒粒徑分為5~8目、30~40目和60~80目三種，橡膠顆粒摻量分為5%、10%和15%三種。通過試驗測定瞭不同配閤比橡膠混凝土的含氣量和坍落度，探討瞭混凝土含氣量和坍落度隨橡膠顆粒粒徑及摻量不同的變化規律。研究結果錶明：橡膠顆粒的摻入起到瞭一定的引氣作用，且橡膠顆粒摻量越大、粒徑越小引氣效果越明顯；5~8目橡膠顆粒的摻入增大瞭混凝土的坍落度，且摻量越大增加效果越明顯，而30~40目和60~80目橡膠顆粒的摻入使混凝土的坍落度先增加再減小。
이C45보통혼응토위기준，용상효과립등체적취대세골료제성상효혼응토，상효과립립경분위5~8목、30~40목화60~80목삼충，상효과립참량분위5%、10%화15%삼충。통과시험측정료불동배합비상효혼응토적함기량화담락도，탐토료혼응토함기량화담락도수상효과립립경급참량불동적변화규률。연구결과표명：상효과립적참입기도료일정적인기작용，차상효과립참량월대、립경월소인기효과월명현；5~8목상효과립적참입증대료혼응토적담락도，차참량월대증가효과월명현，이30~40목화60~80목상효과립적참입사혼응토적담락도선증가재감소。
Rubber concrete was made by replacing fine aggregate at equal volume substitution ratio with rubber particles ,which based on C45 normal concrete,and rubber particles were 5~8 mesh、30~40 mesh and 60~80 mesh,rubber particles dosage were 5%、10%and 15%.Experimental determined the air content and slump of the rubber concrete in different concrete mix ,and discussed the variation of concrete air content and slump with the difference of rubber particle size and dosage.The results showed that the incorporation of rubber particles played a certain role of entraining effect,and the entraining effect was more obvious with the rubber particles dosage larger and particle size smaller;the incorporation of 5~8 mesh rubber particles increases the slump of concrete and the effect was more obvious with dosage greater,while the concrete slump first increases and then decreased when mixed with 30~40 mesh and 60~80 mesh rubber particles.
