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Quality Affect Factors Research Of Small Irrigation And Water Precast Concrete U-Shaped Experiment Slot

Posted on:2016-11-21Degree:MasterType:Thesis
Country:ChinaCandidate:T FengFull Text:PDF
GTID:2272330470966618Subject:Water Resources and Hydropower Engineering
Abstract/Summary:PDF Full Text Request
Proportioning of cement concrete are the main factors affecting the quality of precast concrete u-shaped slot, it affects the various performance of concrete and direct closely linked with the quality of the components. Due to the producers of quality consciousness is weak, with no reasonable proportion plan to guide the production, Production manufacturers are based on experience to increase or decrease water and materials. Most of the time the workers for working, not in accordance with the procedures that caused many quality problems.Therefore, ratio analysis and study of concrete precast concrete u-shaped slot component quality production has a guiding significance for the u-shaped slot structure. Based on the analysis of the cause quality, understand the rules of production and inspection technology, unified production process, change of plan, under the condition of different mixing proportion of prefabricated quality are analyzed. The main content of the research are as follows:(1)Analysis the precast concrete u-shaped slot quality defects causes and prevention measures, expounds the production of components and detection technology discipline, provides the correct component production test method, and gives the u-shaped slot component detection basis.(2)By changing the mix proportioning of the concrete and precast u-shaped slot artifacts, summarizes the problems found in production, research and analyze the component appearance quality, meet the requirements of appearance quality of mixture ratio are obtained.(3)Analyzed different concrete mixing proportion of concrete of VC value and compressive strength, summarized the general rule of single stage with small stone harsh concrete performance.(4)On the basis of analyzing the appearance quality, damage to components inner quality namely external pressure load and permeability performance test analysis. Comprehensive from component production to forming the quality analysis of the research, it is concluded that a reasonable set of precast concrete of the u-shaped slot production process and plan.Research work of this paper lies in trying to find the reasonable precast concrete u-shaped groove making mixture solution, the component a further understanding of the influence factors of quality defects.But for the future of the precast concrete u-shaped slot production provide a reference basis, guide the correct production manufacturers, also for single stage with harsh concrete performance study provided the scientific basis.
Keywords/Search Tags:precast concrete u-shaped slot, single stage with small stone harsh concrete, proportioning of cement concrete, production process, appearance and inner quality
PDF Full Text Request
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