文章摘要
万小梅,张宇,赵铁军,张淑文,程杨杰.碱激发矿渣混凝土的力学性能[J].材料导报,2018,32(12):2091-2095
碱激发矿渣混凝土的力学性能
Mechanical Properties of Alkali-activated Slag Concrete
  
DOI:10.11896/j.issn.1005-023X.2018.12.028
中文关键词: 碱激发矿渣混凝土 力学性能 弹性模量 泊松比 应力应变曲线
英文关键词: alkali-activated slag concrete (AASC), mechanical property, modulus of elastic, Poisson’s ratio, stress-strain curve
基金项目:国家重点基础研究发展计划(973项目)(2015CB655100);国家自然科学基金重点国际合作项目(51420105015);山东省自然科学基金(ZR2017ZC0737)
作者单位E-mail
万小梅 青岛理工大学土木工程学院,青岛 266033
青岛理工大学蓝色经济区工程建设与安全山东省协同创新中心,青岛 266033 
wanxiaomeiqj@126.com 
张宇 青岛理工大学土木工程学院,青岛 266033  
赵铁军 青岛理工大学土木工程学院,青岛 266033
青岛理工大学蓝色经济区工程建设与安全山东省协同创新中心,青岛 266033 
 
张淑文 青岛理工大学土木工程学院,青岛 266033  
程杨杰 青岛理工大学土木工程学院,青岛 266033  
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中文摘要:
      文章对碱激发矿渣混凝土(AASC)的强度发展、劈拉强度、弯曲强度、弹性模量、泊松比和应力应变关系开展了试验研究和讨论,并将其与硅酸盐水泥混凝土(OPCC)进行对比,分别提出了AASC的劈拉强度、弯曲强度、弹性模量与抗压强度之间的关系模型。结果表明,相同抗压强度下,AASC的劈拉强度与OPCC基本接近,弯曲强度则高于OPCC;氢氧化钠激发矿渣混凝土的弹性模量与抗压强度的关系与OPCC基本一致,水玻璃激发矿渣混凝土的弹性模量则低于同抗压强度OPCC的弹性模量。此外,从加载过程中泊松比的变化发现,即使应力水平达到0.6,AASC的泊松比仍然保持稳定,导致其泊松比突变的应力临界水平出现在0.8左右。
英文摘要:
      This paper presents a series of investigation results on compressive strength, splitting strength, flexural strength, elastic modulus, Poisson’s ratio and stress-strain evolution of alkali-activated slag concrete (AASC). Based on the comparison with ordinary Portland cement concrete (OPCC), this paper proposed three models which involves the relationship between splitting strength and compressive strength, the relationship between flexural strength and compressive strength, and the relationship between elastic modulus and compressive strength. The results demonstrate that AASC is shown to be similar in splitting strength with OPCC with same compressive strength level, while to be higher in flexural strength than OPCC. And the relationship between elastic modulus and compressive strength of AASC activated by NaOH is highly close to OPCC, while the elastic modulus of AASC activated by water glass is lower than OPCC. Furthermore, it can be found that, the results of Poisson’s ratio keep stable even at the stress level of 0.6,and the critical stress level is nearly 0.8 at which Poisson’s ratio booms.
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