贯入法及冲击筛分法检测砌体抹灰砂浆强度研究-学兔兔 www.xuetutu.com.pdf

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水利水电技术第42卷2011年第8期
贯入法及冲击筛分法检测砌体抹灰
砂浆强度硏究
杨智,张今F阳,罗居刚',候晓熙2,岳亮亮
安
徽
水利部准河水利委员会水利科学研究院,安徽蚌埠23300
2.中城建六局集团有限公司二公司,安徽蚌埠233000)
摘要:为了解现有的砌筑砂浆强度检测方法的适应性,进行了试验研究。试验中主要采用了贯入
法、冲击筛分法检测普通粘土砖砌体28d抹灰砂浆的强度,并辅以点荷法,立方体抗压强度予以对
比分析。结果表明,冲击筛分法可以用作普通粘土砖砌体28d抹灰砂浆强度的检测,而贯入法需要
进一步研究,以获得准确的抹灰砂浆强度回归曲线,方可用于现场检測。
关键词:抹灰砂浆;贯入法;冲去筛分法;砂浆强度
中图分类号:TB302.
文献标识码:A
文章编号:1000-0860(2011)08-0031-04
Study on strength detection of masonry plastering mortar with penetration method
and impact screening method
YANG Zhi ZHANG Jinyang, LUO Jugang, HOU Xiaoxi, YUE Liangliang
1. Water Resources Research Institute of Anhui Province and Huaihe River Commission, MWR Bengbu 233000, Anhui, China
2. 2nd Sub-company of China City Construction holding group Company, Bengbu 233000, Anhui, China
Abstract In order to find out the adap abilities of the existing methods for detecting the strength of masonry plastering mortar, an
experimental study is made; in which the 28 d strength of the plastering mortar for the conventional masonry structure of clay
bricks is detected with both the enetration method and the impact screening method along with the supplements of the point load
and cubic conerete compressive strength methods for the comparative analysis concerned. The results show that the impact screen
ing method can be used to detect the 28 d strength of the plastering mortar for the conventional masonry structure of clay bricks
however, a further study is necessary to be made on the penetration method for obtaining the accurate regression curve of the
strength from the plastering mortar, only in this way, it can be used for the in-situ detection.
Key words: plastering mortar; penetration mcthod; impact screening method; mortar strength
1引
的强度等级。尽管认为抹灰砂浆的抗压强度不需要太
高,但是当出现与抹灰质量有关的争议或纠纷问题
砌筑砂浆在砖混结构中应用广泛,其砂浆强度影时,不仅需要有一种方法来检测已硬化的抹灰砂浆强
响着砌体的抗歴强度和抗剪强度。目前对结构砌筑砂度,还需要了解这种比例的抹灰砂浆对应的强度等级。
浆强度进行的方法有贯入法、回弹法、冲击筛分法、
筒压法等等,并有相应的国家规程,如文献[1-3]。
收稿日期:2011-06-10
但是在工程实际中偶尔会遇到与抹灰层砂浆强度有关
基金项目:水利部公益性行业科研专项经费项目(201101014、
的问题。众所周知,对于抹灰砂浆,在设计文件和国
201101012、200901053-2)
家规范中仅规定了水泥和砂的比例,而没有规定砂浆作者简介:杨智(1986-),男,四川绵阳人,助理工程师
Water Resources and Hydropower Engineering Vol42 No&