Effect of highland barley straw ash admixture on properties and microstructure of concrete

被引：31

作者：

Cao, Feng ^{[1
,2
]}

Qiao, Hongxia ^{[1
,2
]}

Li, Yuanke ^{[1
]}

Shu, Xiuyuan ^{[1
]}

Cui, Lijun ^{[1
]}

机构：

[1] Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Gansu, Peoples R China

[2] Qinghai Minzu Univ, Sch Civil & Transportat Engn, Xining, Qinghai, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2022年 / 315卷

关键词：

Highland barley straw ash; Activity index; Physical properties; Mechanical properties; Pore structure; Microstructure; WHEAT-STRAW; MECHANICAL-PROPERTIES; CEMENT; PERMEABILITY; DURABILITY; AGGREGATE;

D O I：

10.1016/j.conbuildmat.2021.125802

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study investigated the activity of highland barley straw ash (HBSA) and proposed methods for preparing active HBSA. In addition, the effects of HBSA addition on the physical and mechanical properties of concrete and the microstructure of concrete with different HBSA contents were investigated. With the increasing HBSA content, the water absorption and concrete porosity first decreased and then increased, while the opposite trend was observed for the compressive and splitting tensile strengths. The concrete with 15% HBSA exhibited the best physical and mechanical properties because HBSA addition changed the composition of hydration products and optimized the concrete pore structure.

引用

页数：14

共 53 条

[51] Assessment of β-glucans, phenols, flavor and volatile profiles of hulless barley wine originating from highland areas of China [J].

Zhang, Kaizheng ;

Yang, Jiangang ;

Qiao, Zongwei ;

Cao, Xinzhi ;

Luo, Qingchun ;

Zhao, Jinsong ;

Wang, Fengqing ;

Zhang, Wenxue .

FOOD CHEMISTRY, 2019, 293 :32-40

[52] Bond strength and corrosion behavior of rebar embedded in straw ash concrete [J].

Zhang Qiang ;

Li Yaozhuang ;

Xu Lei ;

Lun Peiyuan .

CONSTRUCTION AND BUILDING MATERIALS, 2019, 205 :21-30

[53] Study on the origin traceability of Tibet highland barley (Hordeum vulgare L.) based on its nutrients and mineral elements [J].

Zhang, Tangwei ;

Wang, Qian ;

Li, Jirong ;

Zhao, Shanshan ;

Qie, Mengjie ;

Wu, Xuelian ;

Bai, Yang ;

Zhao, Yan .

FOOD CHEMISTRY, 2021, 346

← 1 2 3 4 5 6 →