摘要
针对再生混凝土的力学变化特征,以粉煤灰再生混凝土为研究对象,重点研究粉煤灰掺量对再生混凝土抗压强度的影响规律,并从材料能量演化的角度,研究再生混凝土的能量演化特征,研究结果表明:粉煤灰掺量对材料抗压强度产生影响,在小于最优掺量范围内,抗压强度随着粉煤灰掺量的增加而增加,可利用指数函数定量描述;在小于最优掺量范围内,材料的弹性应变能与粉煤灰掺量成正比例关系,储能极限越高,产生破坏耗散能量越多。
Focusing on the mechanical variation characteristics,selecting fly ash regenerated concrete as the research object,this paper mainly studied the influence regularity of fly ash content on compressive strength of regenerated concrete and the energy evolution characteristics of regenerated concrete from the material energy evolution perspective.The result showed that,first,the fly ash content affects the compressive strength of materials.Within the range of less than the optimal content,the compressive strength increases with the increase of fly ash content,which can be described quantitatively by exponential function.Second,within the range of less than the optimal content,the elastic strain energy of materials is in direct proportion to the fly ash content—the higher the energy storage limit is,the more destructive dissipation energy will be generated.
作者
贾珊珊
JIA Shan-shan(Shanxi Highway Engineering Supervision Consulting Co.,Ltd.,Taiyuan,Shanxi 030006,China)
出处
《山西交通科技》
2019年第6期27-29,共3页
Shanxi Science & Technology of Transportation
关键词
再生混凝土
粉煤灰
抗压强度
能量演化
regenerated concrete
fly ash
compressive strength
energy evolution
作者简介
贾珊珊(1983—),女,山西大同人,工程师,2010年毕业于长安大学道路桥梁与渡河工程专业。
