中国科技纵横
中國科技縱橫
중국과기종횡
CHINA SCIENCE & TECHNOLOGY PANORAMA MAGAZINE
2013年
6期
59-61
,共3页
橡胶粉%混凝土%拌合物性能%力学性能
橡膠粉%混凝土%拌閤物性能%力學性能
상효분%혼응토%반합물성능%역학성능
Scrap rubber powder%concrete%workability%mechanical property
作为一种新型混凝土,橡胶混凝土受到越来越多的关注.本文通过使用粒径120目(119μm),掺量为30kg/m3的精细橡胶粉,分别在0.40、0.45、0.50、0.55的水灰比条件下,研究了混凝土拌和物性能和力学性能,最终得到橡胶粉对混凝土性能的影响效果.试验结果表明,新拌橡胶混凝土的工作性良好,橡胶粉的掺入降低了混凝土拌合物的坍落度和表观密度,硬化混凝土的立方体抗压强度.随水灰比为0.40、0.45、0.45、0.55的橡胶混凝土28天抗压强度分别为相应的普通混凝土抗压强度的92%、83%、84%、82%;56天的抗压强度分别为相应普通混凝土抗压强度的82%、75%、74%、72%.
作為一種新型混凝土,橡膠混凝土受到越來越多的關註.本文通過使用粒徑120目(119μm),摻量為30kg/m3的精細橡膠粉,分彆在0.40、0.45、0.50、0.55的水灰比條件下,研究瞭混凝土拌和物性能和力學性能,最終得到橡膠粉對混凝土性能的影響效果.試驗結果錶明,新拌橡膠混凝土的工作性良好,橡膠粉的摻入降低瞭混凝土拌閤物的坍落度和錶觀密度,硬化混凝土的立方體抗壓彊度.隨水灰比為0.40、0.45、0.45、0.55的橡膠混凝土28天抗壓彊度分彆為相應的普通混凝土抗壓彊度的92%、83%、84%、82%;56天的抗壓彊度分彆為相應普通混凝土抗壓彊度的82%、75%、74%、72%.
작위일충신형혼응토,상효혼응토수도월래월다적관주.본문통과사용립경120목(119μm),참량위30kg/m3적정세상효분,분별재0.40、0.45、0.50、0.55적수회비조건하,연구료혼응토반화물성능화역학성능,최종득도상효분대혼응토성능적영향효과.시험결과표명,신반상효혼응토적공작성량호,상효분적참입강저료혼응토반합물적담락도화표관밀도,경화혼응토적립방체항압강도.수수회비위0.40、0.45、0.45、0.55적상효혼응토28천항압강도분별위상응적보통혼응토항압강도적92%、83%、84%、82%;56천적항압강도분별위상응보통혼응토항압강도적82%、75%、74%、72%.
As a new concrete, rubberized concrete obtained widespread interest in this field of building materials. This paper studies the workability and mechanical properties of rubberized concrete mixed with powder particle size of 120 mesh fine rubber powder (30 kg/m3) with water to cement ratio of 0.40, 0.45, 0.50, and 0.55, respectively. The influence of added rubber powder on concrete obtained and analyzed finally. The results showed that the rubberized concrete has a good workability, and the added rubber powder decrease the slump, apparent density and the mechanical properties. Compared to the plain concrete with the water to cement ratio of 0.40, 0.45, 0.50, and 0.55, the 28 days compressive strength of rubberized concrete decreases 8%, 17%, 16%and the 56 days compressive strength decreases 18%, 25%, 26%, and 28%, respectively.
