膨胀玻化微珠保温板性能优化及应用研究

发布时间：2018-01-22 04:04

本文关键词： 建筑节能玻化微珠保温板正交试验导热系数性能优化　出处：《北方工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：本文针对现有玻化微珠保温板保温性能差、干密度大、强度低等缺点,从原材料的选用、配比优化等方面出发,建立保温板的性能检测方法,采用正交试验对保温板配比进行研究,通过极差、方差等分析方法,得到初步配比,再采用配比优化试验并考虑保温板综合性能,得到试验最优配比,最终研制出性能更优的玻化微珠保温板。主要研究内容如下:1.通过比较分析现有玻化微珠保温板组成材料的优缺点,选定试验原材料;同时对比分析现行相关试验标准,确定玻化微珠保温板各项性能测试标准。以普通玻化微珠保温砂浆基本配比为基础,考虑干密度、抗压强度、稠度三项指标,根据试验确定本文较适宜的玻化微珠堆积密度和试验用水量。2.通过分析现有玻化微珠相关规范,制定本文试验配比考核指标。采用四因素三水平正交试验,以保温板干密度、导热系数、抗压强度为评价指标,通过极差、方差等分析方法研究玻化微珠掺量、水泥掺量、纤维水镁石绒掺量以及复合外加剂种类四种因素对三项指标的影响,得出影响保温板性能指标的主次因素及显著性并初步确定玻化微珠保温板试验配比。在此基础上对试验配比进一步优化,并考虑保温板抗折强度、线性收缩率、抗冻性等各项性能,在满足试验配比考核指标和优于现有珍珠岩等无机防火保温板性能前提下,确定保温板最佳配合比。3.将玻化微珠保温板应用于常用墙体,通过热工计算,得出满足北方地区65%节能要求玻化微珠保温板的最小厚度。参考珍珠岩保温板工程技术规程制定膨胀玻化微珠保温板规格尺寸,并设计外墙保温隔热系统基本构造,提出保温板施工方法。
[Abstract]:Aiming at the shortcomings of the existing glass bead insulation board, such as poor thermal insulation performance, high dry density and low strength, the performance testing method of the thermal insulation board is established from the aspects of raw material selection, proportion optimization and so on. Orthogonal test was used to study the proportion of insulation board. Through the analysis of extreme difference and variance, the initial proportion was obtained, and the optimum ratio was obtained by optimizing the ratio test and considering the comprehensive performance of the insulation board. The main research contents are as follows: 1. By comparing and analyzing the advantages and disadvantages of the existing glass bead insulation board, the experimental raw materials are selected. At the same time, by comparing and analyzing the current relevant test standards, the performance test standards of vitrified microbead insulation board are determined. Based on the basic ratio of ordinary glass microbead insulation mortar, three indexes of dry density, compressive strength and consistency are considered. According to the test, the proper packing density and water consumption of the glass beads were determined. Through the analysis of the existing relevant specifications of the glass beads, the test proportioning assessment index was established, and the four factors and three levels orthogonal test was adopted. The dry density, thermal conductivity and compressive strength of the thermal insulation board were taken as the evaluation indexes. The content of glass microbeads and cement was studied by means of extreme difference and variance analysis. The influence of fiber brucite content and compound admixture on the three indexes. The main and secondary factors affecting the performance of the thermal insulation board and its significance were obtained, and the experimental ratio of the glass microbead insulation board was preliminarily determined. On this basis, the test ratio was further optimized, and the bending strength and linear shrinkage of the thermal insulation board were considered. On the premise of meeting the test ratio and testing index and surpassing the existing performance of inorganic fire insulation board such as perlite. Determine the best proportion of heat preservation board. 3. Apply glass microbead insulation board to common wall, through thermal calculation. The minimum thickness of vitrified microbead insulation board is obtained to meet the energy saving requirements of 65% in North China. The specifications and dimensions of expanded glass bead thermal insulation board are formulated with reference to the engineering technical specification of perlite thermal insulation board. The basic structure of exterior wall thermal insulation system is designed, and the construction method of thermal insulation board is put forward.
【学位授予单位】：北方工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU551

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