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
11-14
,共4页
砖粉泡沫混凝土%EPS颗粒%抗压强度%吸水率
磚粉泡沫混凝土%EPS顆粒%抗壓彊度%吸水率
전분포말혼응토%EPS과립%항압강도%흡수솔
Brick powder foam concrete%Recycled EPS particle%Compressive strength%Water absorption rate
再生EPS颗粒表面粗糙，且多粒径具有一定的级配，将其加入到废弃微粉新体系泡沫混凝土中，可改善其性能，拓宽其利用渠道。研究了再生EPS颗粒对砖粉泡沫混凝土各项性能的影响。试验结果表明，EPS的掺入使其干密度线性降低，掺量在4%~6%之间时，抗压强度下降缓慢，含水率大幅度下降，抗碳化能力增强，抗冻融能力满足规范要求，导热系数减小。与通过增加泡沫用量获得的同密度等级的砖粉泡沫混凝土相比，掺有再生EPS颗粒的混凝土抗压强度提高，含水率和吸水率降低，性能较为优越。
再生EPS顆粒錶麵粗糙，且多粒徑具有一定的級配，將其加入到廢棄微粉新體繫泡沫混凝土中，可改善其性能，拓寬其利用渠道。研究瞭再生EPS顆粒對磚粉泡沫混凝土各項性能的影響。試驗結果錶明，EPS的摻入使其榦密度線性降低，摻量在4%~6%之間時，抗壓彊度下降緩慢，含水率大幅度下降，抗碳化能力增彊，抗凍融能力滿足規範要求，導熱繫數減小。與通過增加泡沫用量穫得的同密度等級的磚粉泡沫混凝土相比，摻有再生EPS顆粒的混凝土抗壓彊度提高，含水率和吸水率降低，性能較為優越。
재생EPS과립표면조조，차다립경구유일정적급배，장기가입도폐기미분신체계포말혼응토중，가개선기성능，탁관기이용거도。연구료재생EPS과립대전분포말혼응토각항성능적영향。시험결과표명，EPS적참입사기간밀도선성강저，참량재4%~6%지간시，항압강도하강완만，함수솔대폭도하강，항탄화능력증강，항동융능력만족규범요구，도열계수감소。여통과증가포말용량획득적동밀도등급적전분포말혼응토상비，참유재생EPS과립적혼응토항압강도제고，함수솔화흡수솔강저，성능교위우월。
Recycled EPS particle surface is rough, and has many particle sizes and a certain distribution. If joining the waste powder new system foam concrete, rRecycled EPS particle can improve its performance, and broaden the chan-nels for its use. Influence of recycled EPS particles on brick powder foam concrete performance is studied. The experimen-tal results show that EPS makes drying density decreasing linearly; when EPS content is between 4% and 6%, the com-pressive strength decreases slowly; moisture contents drops largely and carbonization resistance increases; when EPS con-tent is more than 4%, the compressive strength after freezing and thawing can meet specification requirements, but strength loss rate is greater than 20%; thermal conductivity coefficient is reduced, but as EPS content continues to increase, there is no obvious change; compared to the same density brick powder foam concrete which is get by increasing the dosage of bubble, the compressive strength of EPS concrete increases, moisture content and bibulous rate is lower, and it has more superior performance.
