Outcomes of the research can provide testing and academic basis for determining reasonable structure type in design and construction to reduce shrinkage crack. 研究结果可以为实际设计和施工中确定合理的水稳基层结构类型、减少基层收缩裂缝提供试验和理论依据。
Causation And Prevention Measure Of Temperature Shrinkage Crack In Longer Concrete Structure 超长砼结构温度收缩裂缝的成因及防治措施浅析
The polypropylene fiber can effectively control the length, width and number of the drying shrinkage crack of early-age concrete. 聚丙烯纤维可有效控制混凝土早期干缩裂缝的长度、宽度和数量。
Development and Control of Temperature and Shrinkage Crack for Cast-in-situ Reinforced Concrete Box Beams 浅谈钢筋混凝土现浇箱梁温度与收缩裂缝的产生与控制
The paper states that the plastic cracks after shaped the pumping concreting divides into plastic settlement crack and plastic shrinkage crack. 本文阐述泵送混凝土浇筑成型后产生的塑性裂缝,分为塑性沉降裂缝和塑性收缩裂缝。
The quantity and the thickness of commodity concrete is more than normal concrete, which tends to occur shrinkage crack in structure when transporting or pumping. 商品砼为满足运输或泵送的流动性要求,一般水泥用量较多,砼的稠度较大,容易引起收缩裂缝的出现。
Study on Temperature and Shrinkage Crack Control of Over-long Concrete Frame Structures on the Basis of "Resist and Release" Principles 基于抗与放设计原则的超长混凝土框架结构温度及收缩裂缝控制研究
On Controlling Concrete Plastic Shrinkage Crack by Mixing Polypropylene Fibers 掺聚丙烯纤维控制混凝土塑性收缩裂缝的研究
Combined with investigation of specific engineering, it analyzes causes of cracks of thin concrete pier, introduces technical measures to avoid temperature shrinkage crack from proportion of concrete 、 maintenance and entering temperature, and summarizes construction ( experiences). 结合具体工程的裂纹调查情况,分析了薄壁式混凝土桥台台身裂纹的产生原因,从混凝土配合比、养护、入模温度三方面介绍了避免温度收缩裂纹的技术措施,并总结了施工经验。
How to Control Concrete Shrinkage Crack in Construction 施工中如何控制混凝土收缩裂缝
Authors studied the influence of different kinds, quantity and length of polypropylene fiber on early stage plastic shrinkage crack of mortar. 研究不同品种、掺量、长度的聚丙烯纤维对砂浆早期塑性收缩裂缝的影响。
Cause and control of high performance concrete shrinkage crack 高性能混凝土的收缩裂缝原因及其控制
In this article, the author introduces the using of expansion strengthening zone in ultra-long reinforcement concrete structure to improve concrete tensile strength and to control the development of shrinkage crack. 介绍超长钢筋混凝土墙体中使用膨胀加强带及增加温度应力钢筋提高混凝土自身的抗拉性能,控制混凝土收缩裂缝的技术措施。
No-through shrinkage crack design criteria, together with corresponding engineering practices are also recommended according to the theoretical analysis. 根据本文的理论分析提出了无贯穿性收缩裂缝的设计准则及相应的工程措施。
Temperature and shrinkage crack of huge concrete can destruct concrete structure, so it is important to control the crack. 大体积混凝土结构的温度与收缩裂缝对混凝土结构具有破坏作用,控制裂缝的产生,十分重要。
The application of slab concrete mit proportion design in rock-fill dam and concrete crack control technology in construction process are introduced, taking Huanglong Reservoir in Tiantai for the example, to avoid and seduce shrinkage crack after construction effectively. 介绍了天台黄龙水库混凝土面板堆石坝的面板混凝土配合比设计和施工过程控制相结合的混凝土防裂技术的应用,在避免和减少施工后收缩裂缝方面收到很好的效果。
This article carries out overall analysis on the mechanism and influencing factors of dry shrinkage in cement stabilized base materials, and proposes effective preventive measures on the basis of the analysis, in order to reduce dry shrinkage crack in cement stabilized base materials. 对水泥稳定类基层材料干燥收缩的机理、影响因素进行了详细而全面的分析,并在此基础上提出了有效的预防措施,以尽量减少水泥稳定类基层材料的干缩裂缝。
In this article some measures adopted in mass concrete construction of high rise building are discussed to avoid desiccation cracks, shrinkage crack and seepage. 简要论述了在高层建筑大体积混凝土施工中,为了避免因干缩、冷缩引起的开裂、渗漏而采取的一些措施。
The causes of concrete cracks are analyzed and according to different kind of cracks such as settlement crack, plastic shrinkage crack and temperature crack corresponding control measures are proposed in order to provide engineering references for cracks control and treatment. 对混凝土裂缝产生的原因进行了分析,就混凝土裂缝的种类,从沉降、塑性收缩裂缝、温度裂缝等方面提出了相应的控制措施,以期对工程中混凝土裂缝的治理有所帮助。
This paper discusses the cause of concrete shrinkage crack and the control methods of concrete shrinkage crack. 讨论了混凝土收缩裂缝的形成原因和收缩裂缝的控制方法。
Causes analysis for temperature shrinkage crack of concrete pier and its control measures 混凝土台身温度收缩裂纹原因分析及控制措施
Road surface early cracks are common and incident disease, this paper discusses the reasons for dry shrinkage crack of cement stabilized gravel base course, presents the measures, and summarizes the items that should be paid attention to while constructing. 沥青路面早期裂缝是常见且易发生的病害之一,针对水泥稳定砂砾基层干缩裂缝原因进行了探讨,提出了防治措施,并结合工程实践总结了施工中应该注意的事项。
The crack of big volume reinforced concrete base mainly consistes of surface temperature crack and vertical shrinkage crack. 大体积钢筋砼基础裂缝主要有表面温度裂缝和垂直收缩裂缝。
Study on temperature shrinkage crack of asphalt pavement 沥青混凝土路面温缩裂缝的研究
Influencing Factors of Lime Soil Strength& Shrinkage Crack and Its Corresponding Prevention Measures 石灰土强度的影响因素和缩裂与防治措施
Effects of Polypropylene fiber on performance of concrete were studied experimentally applying mortar and concrete drying shrinkage crack test methods proposed by P.P. Kraai, mechanical properties and durability test methods. P.Kraai提出的砂浆及混凝土干燥收缩裂缝测试方法、混凝土力学性能试验、抗冻等耐久性能试验方法,研究了改性聚丙烯纤维对砂浆和混凝土性能的影响。
It analyzes the reason caused concrete shrinkage crack, introduces general regulation of common element shrinkage, illustrates the relationship among shrinkage crack and several factors, shows the harmfulness of shrinkage crack, and puts forward preventive measure against it. 分析了混凝土收缩裂缝产生的原因,介绍了常见构件收缩缝出现的一般规律,阐述了收缩裂缝与若干因素的关系,阐明了收缩裂缝存在的危害性,并提出了预防措施。
The paper discussed the formation of concrete structure and causes and the influence of plastic shrinkage crack, settlement crack and temperature related crack and suggested some prevention measures and treatment. 探讨了混凝土结构体形成塑性收缩裂缝、沉降裂缝和温度裂缝的原因及影响因素,并提出预防开裂的有效措施和裂缝的处理方法。
But almost all the attention of the plastic shrinkage crack are focus on the medium and coarse sand concrete and the study of super fine one not found. 目前关于塑性收缩裂缝的研究几乎都集中在中粗砂混凝土,对于特细砂混凝土塑性收缩裂缝及其相关问题的研究几乎没有。
The mechanism of this bridge effect arresting the spread of shrinkage crack in semi rigid base course through bituminous surface is analyzed, and the influence of interfacial contaction condition on it. 分析了这种桥联效应对半刚性基层收缩裂缝在沥青面层中扩展的阻止机理,讨论界面接触状态对它的影响;