膨脹珍珠巖及陶粒節(jié)能保溫混凝土板的研制
發(fā)布時間:2018-05-22 20:41
本文選題:膨脹珍珠巖 + 陶粒 ; 參考:《安徽理工大學》2014年碩士論文
【摘要】:膨脹珍珠巖和陶粒兩種材料作為出色的保溫原材料,有著質(zhì)輕、隔熱、耐久、價廉的特點,尤其是兩種材料的成分均為無機物,與傳統(tǒng)的聚苯乙烯泡沫塑料板等保溫材料相比又有著不凡的防火性能,所以在能源問題日益嚴峻的背景下,越來越受到青睞,成為保溫工程中的重要原材料。其中,用膨脹珍珠巖和陶粒制成的輕集料混凝土保溫板材為最常見的應(yīng)用方式。 本論文將對以膨脹珍珠巖顆粒和陶粒顆粒作為主要原材料,并以陶砂代替普通砂來制作的節(jié)能保溫混凝土板材作以研究,探尋性能優(yōu)良的試驗配合比及其制作工藝,同時得出其各項技術(shù)參數(shù),滿足作為建筑圍擋結(jié)構(gòu)的使用要求。主要的研究內(nèi)容如下: (1)探討節(jié)能保溫混凝土的導熱理論和強度理論。確定以導熱系數(shù)為主要控制目標來評定混凝土保溫功效的研究手段,與普通混凝土對比,闡述節(jié)能保溫混凝土的強度形成機制。 (2)針對膨脹珍珠巖顆粒因吸水率偏高而難以大范圍推廣的問題,特別采用憎水膨脹珍珠巖顆粒作為試驗材料,大幅降低了膨脹珍珠巖混凝土的吸水率,為膨脹珍珠巖混凝土的進一步應(yīng)用奠定了基礎(chǔ)。 (3)詳細闡述節(jié)能保溫混凝土的制作工藝,分析制作過程中需要注意問題,使其作為建筑保溫構(gòu)件的各種功能得以最大化發(fā)揮。 (4)以兩組正交試驗方案,考慮水泥用量、凈用水量、陶砂砂率和輕骨料總體積對試驗結(jié)果的影響,得到關(guān)于干表觀密度、28d抗壓強度和導熱系數(shù)的參數(shù)數(shù)據(jù)。對這數(shù)據(jù)進行對比分析,并找出各種因素對這些參數(shù)影響作用的大小關(guān)系,最終選定膨脹珍珠巖混凝土為制造外墻墻體板材的方案,陶;炷翞橹圃煳菝姘灏宀牡姆桨浮 (5)最大限度克服“材料容重越小、保溫功效越好,但強度越低”的矛盾,探尋出了兼顧彼此的最佳配合比,令節(jié)能保溫混凝土的各種功效水平趨于平衡,并測定出最佳配合比下的試驗結(jié)果參數(shù)。
[Abstract]:Expanded perlite and ceramsite are excellent raw materials for heat preservation, which have the characteristics of light weight, heat insulation, durability and low price, especially the composition of both materials is inorganic. Compared with traditional thermal insulation materials such as polystyrene foam plastic sheet, it has excellent fire resistance, so it is more and more popular in the background of energy problem becoming more and more serious, and become an important raw material in insulation engineering. Among them, lightweight aggregate concrete insulation board made of expanded perlite and ceramsite is the most common application. In this paper, the main raw materials are expanded perlite particles and ceramsite particles, and ceramic sand is used instead of common sand to make energy-saving and thermal insulation concrete plate, and to explore the good performance of the test mix ratio and its manufacturing technology, in this paper, the main materials are expanded perlite particles and ceramsite particles as the main raw materials. At the same time, the technical parameters are obtained to meet the requirements of the building enclosure structure. The main contents of the study are as follows: 1) the thermal conductivity theory and strength theory of energy-saving and thermal insulation concrete are discussed. The research means of evaluating the thermal insulation efficacy of concrete with thermal conductivity as the main control target is determined. Compared with ordinary concrete, the mechanism of strength formation of energy-saving insulation concrete is expounded. 2) aiming at the problem that expanded perlite particles are difficult to be popularized widely due to their high water absorption rate, especially the hydrophobic expanded perlite particles are used as experimental materials, which greatly reduces the water absorption rate of expanded perlite concrete. It lays a foundation for the further application of expanded perlite concrete. This paper expounds in detail the manufacturing technology of energy-saving insulating concrete, analyzes the problems needing attention in the process of making, and makes it possible to maximize its functions as a building insulation member. 4) considering the effects of cement dosage, net water consumption, clay sand ratio and total volume of lightweight aggregate on the test results, two orthogonal test schemes were used to obtain the parameter data on the compressive strength and thermal conductivity of dry apparent density for 28 days. By comparing and analyzing the data and finding out the relationship between the influence of various factors on these parameters, the expansion perlite concrete is selected as the scheme of making wall panel of external wall, and the scheme of making roof slab is made of ceramsite concrete. 5) to overcome the contradiction that "the smaller the bulk weight of the material is, the better the thermal insulation effect is, but the lower the strength", the best mix ratio has been explored to balance the various efficacy levels of energy-saving insulation concrete. The parameters of the test results under the optimum mixture ratio were determined.
【學位授予單位】:安徽理工大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:TU528.7
【參考文獻】
相關(guān)期刊論文 前10條
1 孫文博,李家和,張志春;陶粒泡沫混凝土強度及其影響因素研究[J];哈爾濱建筑大學學報;2002年03期
2 趙曉艷;田穩(wěn)苓;周明杰;莫磊;;EPS輕集料混凝土配合比及性能試驗研究[J];混凝土;2009年02期
3 張澤平;安培霞;師鵬;李珠;;;⒅樘樟;炷恋恼辉囼炑芯縖J];混凝土;2010年02期
4 鄒海江;賈寶書;;蒸壓加氣混凝土砌塊復合保溫外墻性能與構(gòu)造[J];建筑技術(shù);2009年01期
5 馮文黨;劉元珍;李珠;;;⒅楸鼗炷潦軌毫W性能試驗研究[J];混凝土與水泥制品;2014年01期
6 杜榮深,陳小剛;保溫承重復合砌塊的開發(fā)與應(yīng)用[J];建筑砌塊與砌塊建筑;2003年01期
7 吳振江;;輕集料混凝土夾芯保溫砌塊[J];建筑砌塊與砌塊建筑;2008年05期
8 金偉良,葉甲淳,嚴家,徐銓彪,潘金龍;新型墻體材料節(jié)能建筑熱工性能測試與分析[J];新型建筑材料;2002年02期
9 王武祥;300級再生EPS超輕混凝土及其應(yīng)用[J];新型建筑材料;2003年07期
10 王瑩,朱銀洪,羅剛;保溫隔熱用超輕集料塑性混凝土的研制[J];新型建筑材料;2003年07期
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