CAJ | 학술논문

近年来,自密实混凝土由于具有良好的施工性能和填充性能,并在硬化后具有良好的力学性能和耐久性,从而在工程应用中得到越来越多的关注.但随着水胶比的降低和矿物掺合料的掺入,使得自密实混凝土的体积稳定性变得不容忽视,尤其是自收缩,它已经成为产生裂缝的主要原因之一,严重影响到自密实混凝土的耐久性.基于自密实混凝土的研究和应用现状,对自密实混凝土收缩的影响因素、试验方法以及研究的重要性进行了探讨.从工程实际出发,考虑自密实混凝土的复杂特性,对自密实混凝土的收缩性能进行综合分析.
근년래,자밀실혼응토유우구유량호적시공성능화전충성능,병재경화후구유량호적역학성능화내구성,종이재공정응용중득도월래월다적관주.단수착수효비적강저화광물참합료적참입,사득자밀실혼응토적체적은정성변득불용홀시,우기시자수축,타이경성위산생렬봉적주요원인지일,엄중영향도자밀실혼응토적내구성.기우자밀실혼응토적연구화응용현상,대자밀실혼응토수축적영향인소、시험방법이급연구적중요성진행료탐토.종공정실제출발,고필자밀실혼응토적복잡특성,대자밀실혼응토적수축성능진행종합분석.
Self-compacting concrete features good construction and filling performance.The good mechanical properties and durability are ob-vious when concrete was hardened.ha recent years,it is obtained more and more attention on projects.However,with the reduction of water to cement ratio and the incorporation of mineral admixture, the volume stability of self-compacting concrete can not be ignored.Especially the au-togenous shrinkage, it has already become one of the main reasons for cracking and influenced the durability of self-compacting concrete seri-ously.In view of the research and current application situations of self-compacting concrete, different factors impacting on the volume stability of self-compacting concrete and the corresponding experimental study methods were introduced.It attached importance to the research of shrink-age.It also pointed out that the concrete is a very complicated system in construction, and a comprehensive analysis should be done for shrink-age of self-compacting concrete.