[1]严哲德,林上顺,陈宝春,等.影响超高性能砂浆使用性能的关键制备参数[J].福建理工大学学报,2026,24(01):52-59.[doi:10.3969/j.issn.2097-3853.2026.01.007]
 YAN Zhede,LIN Shangshun,CHEN Baochun,et al.Key preparation parameters affecting performance of ultra-high performance mortars[J].Journal of Fujian University of Technology;,2026,24(01):52-59.[doi:10.3969/j.issn.2097-3853.2026.01.007]
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影响超高性能砂浆使用性能的关键制备参数()
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《福建理工大学学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第24卷
期数:
2026年01期
页码:
52-59
栏目:
出版日期:
2026-02-25

文章信息/Info

Title:
Key preparation parameters affecting performance of ultra-high performance mortars
作者:
严哲德林上顺陈宝春何建华
福建理工大学土木工程学院
Author(s):
YAN Zhede LIN Shangshun CHEN Baochun HE Jianhua
School of Civil Engineering, Fujian University of Technology
关键词:
超高性能砂浆砂浆制备配合比优化材料性能
Keywords:
ultra-high performance mortarmortar preparationmix proportion optimizationmaterial performance
分类号:
TQ177.6
DOI:
10.3969/j.issn.2097-3853.2026.01.007
文献标志码:
A
摘要:
超高性能砂浆(UHPM)具有的和易性差、凝结时间短等特点,是制约其在实际工程中推广应用的主要原因。开展11 组UHPM 的使用性能试验,分析制备参数(水胶比3 组、砂灰比3 组、石英砂级配2 组、钢纤维掺量2 组、缓凝剂掺量1 组)的变化对UHPM 的稠度、保水性、和易性、凝结时间、抗压强度及抗折强度的影响,结果表明:UHPM 的保水性能优异,各组砂浆试块的保水率均超过99%;水胶比是影响UHPM 稠度的关键参数,与水胶比为0.14 的UHPM 相比,水胶比为0.16 的UHPM 稠度提高了81%;采用级配石英砂的UHPM,其抗压强度、抗折强度均大于未采用级配石英砂的UHPM;与不掺钢纤维的UHPM 相比,掺入体积分数为156.2 kg/ m3 钢纤维的UHPM 的抗压强度提高了25%,达到114 MPa,抗折强度提高了104%,达到29 MPa;掺入质量分数为0.06%的缓凝剂,延长了UHPM 39%的凝结时间,提高了UHPM 的和易性。相关研究结论可为UHPM 的制备提供参考。
Abstract:
The problems of poor workability and short setting time of ultra-high performance mortar (UHPM) are the bottleneck restricting its popularization and application in practical engineering. In view of this, eleven groups of UHPM performance tests were carried out, considering the changes of key preparation parameters (three groups of water to binder ratio, three groups of sand to cement ratio, two groups of quartz sand gradation, two groups of steel fibre content, one group of retarder content), and analyzing the effects of the changes of these parameters on the consistency, water retention, workability, setting time, compressive strength and flexural strength. Results show that: UHPM has excellent water retention performance, and the water retention rate of each group of mortar is more than 99%;the water to binder ratio is the key parameter affecting the consistency of UHPM, and the consistency of UHPM with a water to binder ratio of 0.16 is increased by 81% compared with that of UHPM with a water to binder ratio of 0.14;the compressive and flexural strengths of the UHPM with gradation quartz sand are greater than those of the UHPM without gradation quartz sand;compared with UHPM without steel fiber, the compressive strength of UHPM with a volume fraction of 2% of steel fiber rose by 25% to 114 MPa, and the flexural strength increased by 104% to 29 MPa. The addition of a retarder with a mass fraction of 0.06% prolonged the setting time of UHPM by 39% and enhanced the workability of UHPM. The relevant research conclusions can offer references for the preparation of UHPM.

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更新日期/Last Update: 2026-02-25