共查询到15条相似文献,搜索用时 234 毫秒
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针对当前聚氨酯灌浆材料在渗漏水治理中存在的问题,提出了依靠堵水环氧灌浆材料和高渗透环氧灌浆材料进行渗漏水治理的新思路。环氧类灌浆材料既能够对混凝土裂缝等缺陷进行修复,也能够封堵渗漏水,希望修复后的缺陷能够保持和恢复混凝土结构的耐久性。 相似文献
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高分子化学灌浆材料,是在水泥、粘土、沥青等传统灌浆材料的基础上发展起来的一种以有机高分子化合物为主的新型灌浆材料。随着现代大工业的发展,各种巨型工程(特别是地下工程和高层建筑)飞速兴建,对化学灌浆材料提出越来越高的要求;同时,由于高分子科学理论和高分子工业的发展,为各种新型灌浆材料的研制开拓了广阔的前景,特别是有机高分子材料,由于它结构的多样性和性能的可变性,为多种新材料的研制创造了有利条件。 相似文献
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本文介绍水泥—水玻璃灌浆加固桩基础建筑物的设计,加固方法和原理。对加固的效果作了较为详细的分析。结合中山涤纶厂成品原料仓库和江门市某商品住宅楼两个工程实例,进一步说明水泥—水玻璃灌浆在桩基础建筑物加固的有效性。 相似文献
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Graziela Virginia Guslicov Mariana Coarna Alice Pop Cristina Vlad Nicoleta Vlad 《Accreditation and quality assurance》2009,14(10):541-546
Since 1988, over 40 laboratories representing research institutes, cement plants, pre-cast units, hydro plant construction companies, industrial construction companies, building companies, etc. from nine countries—Romania, Republic of Moldova, Croatia, Serbia, Macedonia, Bulgaria, Hungary, Ukraine and Lebanon—take part every year in an interlaboratory test organized by our laboratory. The subject of the interlaboratory test for cement was 37 laboratory tests: 12 chemical determinations, 7 physical tests and 9 mechanical tests carried out with 2 types of sand, from CEPROCIM and from each participant laboratory. The paper presents the evolution of two statistical parameters (standard deviation of reproducibility and/or coefficient of variation) for a period of 20 years and for 11 laboratory tests. The results strongly prove that interlaboratory test is one of the most efficient tools to establish a common language for all the participant laboratories performing cement testing procedures. 相似文献
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针对广州开发区SDK-D-2地块砌石挡土墙软弱地层,采用单液静力注浆进行灌浆加固。详细论述了灌浆处理工程中的材料及工艺设备、工艺参数、工艺流程,异常情况技术处理及检测措施,分析了灌浆效果。实践表明处理方法有效,达到了工程设计标准。 相似文献
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M. Komljenović Lj. Petrašinović-Stojkanović Z. Baščarević N. Jovanović A. Rosić 《Journal of Thermal Analysis and Calorimetry》2009,96(2):363-368
This paper presents the results of investigation of properties of fly ash from four major thermal power plants in Serbia.
Chemical, mineralogical and thermal characterization of fly ash has been performed in order to determine the possibility of
its use as the raw material for the construction material industry, primarily the cement industry. Thermal properties of the
raw mixtures for Portland cement clinker production based on fly ash were also investigated. The conclusion was reached that
the use of fly ash as a component of the raw mixture components for the production of cement clinker not only enables substitution
of natural raw materials, but could also have a positive influence on reduction of the sintering temperature of Portland cement
clinker. 相似文献