砖混建筑废弃物免烧砖制备工艺影响抗压强度的研究  

Production process of recycled brick made from brick-concrete construction waste

作　　者：肖曦彬 郭智刚 刘正雄 李源 张高科[2] XIAO Xi-bin;GUO Zhi-gang;LIU Zheng-xiong;LI Yuan;ZHANG Gao-ke

机构地区：[1]深圳市市政工程总公司,广东深圳518000 [2]武汉理工大学资源与环境工程学院,湖北武汉430300

出　　处：《砖瓦》2023年第10期21-24,共4页Brick-tile

基　　金：深圳市市政工程总公司的建筑废弃物减量化与资源化施工新技术应用--砖混建筑废弃物资源化施工新技术应用项目的支持。

摘　　要：砖混废弃物在建筑垃圾中占比较高,砖混建筑废弃物因其成分复杂以及材料强度较低等缺陷,使其难以充分回收利用。为此,提出一种以砖混建筑废弃物为主要原料,通过破碎、分选等预处理,掺入适量水泥和添加剂等混合搅拌,经加压压制成型和养护得到再生砖的工艺,所制得的再生砖抗压强度符合《再生骨料地面砖和透水砖》(CJ/T 400-2012)标准强度等级MU15技术要求,从而实现对砖混建筑废弃物的资源化利用。该再生砖工艺在达到有效回收利用砖混废弃物改善环境的同时,也实现了一定的经济效益。Brick-concrete waste accounts for a relatively high proportion of construction waste,and the amount of brick-concrete waste in the country remains high.Brick-concrete construction waste is difficult to fully re⁃cycle due to its complex composition and low material strength.This paper proposes a process of using brick concrete construction waste as the main raw material,pre-processing such as crushing and sorting,mixing and mixing with appropriate amounts of cement and additives,and then forming and curing to obtain recycled bricks under pressure.The compressive strength of recycled bricks meets the technical requirements of the standard strength grade MU15 of"Recycled aggregate floor tiles and permeable tiles"(CJ/T 400-2012),so as to realize the resource utilization of brick-concrete construction waste.The recycled brick process not only achieves effective recycling and utilization of brick-concrete waste to improve the environment,but also achieves certain economic benefits.

关 键 词：砖混废弃物 再生砖 生产工艺 抗压强度 

分 类 号：TU522.09[建筑科学—建筑技术科学]