施工技术
施工技術
시공기술
CONSTRUCTION TECHNOLOGY
2014年
22期
109-111,115
,共4页
空心砌体%再生砌块砌体%抗压强度%砂浆
空心砌體%再生砌塊砌體%抗壓彊度%砂漿
공심체체%재생체괴체체%항압강도%사장
hollow masonry%regeneration of block masonry%compressive strength%mortar
对不同再生骨料替代率（ RA）下空心砌块、不同强度和不同RA的砂浆以及不同砂浆强度最优替代率组合后空心砌块砌体抗压性能进行试验研究。结果表明，RA为50％时再生砌块和砂浆强度最高；不同RA下设计强度Mb5?0的砂浆强度提高优于Mb7?5；在Mb5?0和Mb7?5砂浆设计强度下，无论是砂浆还是砌块掺入50％再生骨料均可提高再生砌块砌体强度，且均掺入50％的再生骨料强度最高。当RA一定，若砂浆和砌块强度相近，则对空心砌块砌体的强度提高更有利。
對不同再生骨料替代率（ RA）下空心砌塊、不同彊度和不同RA的砂漿以及不同砂漿彊度最優替代率組閤後空心砌塊砌體抗壓性能進行試驗研究。結果錶明，RA為50％時再生砌塊和砂漿彊度最高；不同RA下設計彊度Mb5?0的砂漿彊度提高優于Mb7?5；在Mb5?0和Mb7?5砂漿設計彊度下，無論是砂漿還是砌塊摻入50％再生骨料均可提高再生砌塊砌體彊度，且均摻入50％的再生骨料彊度最高。噹RA一定，若砂漿和砌塊彊度相近，則對空心砌塊砌體的彊度提高更有利。
대불동재생골료체대솔（ RA）하공심체괴、불동강도화불동RA적사장이급불동사장강도최우체대솔조합후공심체괴체체항압성능진행시험연구。결과표명，RA위50％시재생체괴화사장강도최고；불동RA하설계강도Mb5?0적사장강도제고우우Mb7?5；재Mb5?0화Mb7?5사장설계강도하，무론시사장환시체괴참입50％재생골료균가제고재생체괴체체강도，차균참입50％적재생골료강도최고。당RA일정，약사장화체괴강도상근，칙대공심체괴체체적강도제고경유리。
With different recycled aggregate replacement rate ( RA) of hollow block, under the different strength and different RA of mortar and mortar strength optimal combination after the replacement, hollow block masonry compressive performance is researched by experiment. The results show that mortar intensity of the recycled brick with RA 50% is highest; The increasing strength of mortar of Mb5?0 is better than that of Mb7?5 under different RA; Under the Mb5?0 and Mb7?5 mortar strength, mortar or block mixed with 50% recycled aggregates all can improve the regeneration of block masonry strength, and the block masonry strength is highest by mixing with 50% recycled aggregate. When RA has a selected value, the strength of mortar is similar with block. The intensity of hollow block masonry is improved better.
