本文選題：發(fā)泡玄武巖廢料 + 再生骨料��； 參考：《哈爾濱工業(yè)大學(xué)》2017年碩士論文

【摘要】：隨著城鎮(zhèn)化進程的加速,建筑垃圾日益增多,能源短缺和環(huán)境污染問題日益突出。節(jié)能工作已成為可持續(xù)發(fā)展的重要保證。將廢棄的發(fā)泡玄武巖邊角料作為再生輕骨料,部分或全部替代混凝土傳統(tǒng)礦料,將是解決發(fā)泡玄武巖廢料的有效途徑。本文以發(fā)泡玄武巖邊角廢料為研究重點,對其骨料進行品質(zhì)評價,將其作為骨料應(yīng)用在輕骨料混凝土和普通混凝土中,研究其混凝土各方面的性能,旨在為推廣應(yīng)用發(fā)泡玄武巖混凝土提供技術(shù)支持,為節(jié)能墻體的發(fā)展和應(yīng)用提供理論支持。具體研究工作如下:(1)開展了對發(fā)泡玄武巖骨料的品質(zhì)評價,對比了發(fā)泡玄武巖骨料和頁巖陶粒之間的表觀密度、吸水率、含水率、筒壓強度等指標(biāo),得出了發(fā)泡玄武巖輕骨料的基本性能;(2)以發(fā)泡玄武巖骨料取代率為參數(shù),對390個輕骨料混凝土試件開展了力學(xué)性能、收縮性能、抗凍性能以及熱工性能試驗。測試了混凝土立方體抗壓強度、劈裂抗拉強度、抗折強度,觀察了試件的破壞形態(tài),得出了發(fā)泡玄武巖骨料的最優(yōu)摻量范圍,分析了影響混凝土強度的因素;測試了收縮率隨時間的變化規(guī)律,分析了影響收縮的因素;采用了摻引氣劑和裹漿處理的方法,對輕骨料混凝土的抗凍性能進行了研究,提出了改善輕骨料混凝土抗凍性能的方法;測試了混凝土板的導(dǎo)熱系數(shù)值,分析了導(dǎo)熱系數(shù)與發(fā)泡玄武巖骨料取代率的關(guān)系,得到了最佳的發(fā)泡玄武巖骨料取代率值;通過掃描電鏡試驗,得到了輕骨料混凝土骨料內(nèi)部形貌以及粗骨料—水泥石的界面區(qū)情況;(3)以發(fā)泡玄武巖細骨料取代率為參數(shù),對75個普通混凝土試件完成了力學(xué)性能試驗,得出了最佳的發(fā)泡玄武巖細骨料取代率值;分析了各組試件單軸受壓應(yīng)力-應(yīng)變?nèi)�,探討了彈性模量、峰值應(yīng)力、峰值應(yīng)變、極限應(yīng)變的變化規(guī)律;采用多項式擬合的方法分別給出了應(yīng)力-應(yīng)變?nèi)�上升段和下降段參數(shù)的變化規(guī)律,建立了單軸受壓單調(diào)荷載本構(gòu)模型;對摻發(fā)泡玄武巖骨料的混凝土在實際工程中的應(yīng)用給出了建議。
[Abstract]:With the acceleration of urbanization, construction waste is increasing, energy shortage and environmental pollution are becoming more and more serious. Energy conservation has become an important guarantee of sustainable development. It is an effective way to solve foaming basalt waste by using waste foaming basalt scrap as regenerated lightweight aggregate and replacing part or all of traditional concrete mineral material. In this paper, the quality of foamed basalt scrap is evaluated and used as aggregate in light aggregate concrete and ordinary concrete to study the properties of its concrete. The aim is to provide technical support for the popularization and application of foamed basalt concrete and theoretical support for the development and application of energy-saving wall. The concrete research work is as follows: (1) the quality evaluation of foamed basalt aggregates is carried out, and the apparent density, water absorption, water content, tube compressive strength and so on between foamed basalt aggregate and shale ceramsite are compared. The basic properties of foamed basalt lightweight aggregate are obtained. Based on the substitution rate of foamed basalt aggregate, the mechanical properties, shrinkage properties, freezing resistance and thermal properties of 390 lightweight aggregate concrete specimens are tested. The cube compressive strength, splitting tensile strength and flexural strength of concrete are tested, the failure patterns of the specimens are observed, the optimum range of the content of foam basalt aggregate is obtained, and the factors affecting the strength of concrete are analyzed. The variation law of shrinkage rate with time was tested, and the factors affecting shrinkage were analyzed, and the frost resistance of lightweight aggregate concrete was studied by using air entraining agent and slurry wrapping method. The method of improving the frost resistance of lightweight aggregate concrete is put forward, the thermal conductivity of concrete slab is tested, the relationship between heat conductivity and the substitution rate of foamed basalt aggregate is analyzed, and the best value of substitution rate of foamed basalt aggregate is obtained. By SEM test, the internal morphology of lightweight aggregate concrete aggregate and the interface between coarse aggregate and cement stone were obtained. The mechanical properties of 75 ordinary concrete specimens were tested with foam basalt fine aggregate substitution rate as parameters. The optimum value of substitution rate of fine aggregate in foaming basalt is obtained, the full stress-strain curve of uniaxial compression is analyzed, and the variation rules of elastic modulus, peak stress, peak strain and limit strain are discussed. By means of polynomial fitting, the variation laws of the parameters in the ascending and descending sections of the stress-strain full curve are given, and the constitutive model of the monotone load under uniaxial compression is established. The application of concrete mixed with foamed basalt aggregate in practical engineering is suggested.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU528

【參考文獻】

相關(guān)期刊論文 前10條

1 陳連發(fā);陳悅;李龍;陸洋;;高性能輕集料混凝土的力學(xué)性能研究[J];硅酸鹽通報;2015年10期

2 趙振亞;姬寶霖;宋小園;申向東;;輕骨料混凝土的抗凍性研究[J];硅酸鹽通報;2015年09期

3 孫琦;劉軍;林志民;谷明;康鈺;;煤矸石噴射混凝土抗凍性試驗研究[J];硅酸鹽通報;2015年07期

4 扈士凱;李應(yīng)權(quán);陳志純;遲碧川;王明軒;谷冰瑩;;輕骨料混凝土行業(yè)發(fā)展報告[J];混凝土世界;2015年04期

5 王蕭蕭;申向東;王海龍;高矗;張通;;石粉摻量對輕骨料混凝土性能的影響[J];建筑材料學(xué)報;2015年01期

6 于水軍;李彬;陳曉利;;鋼渣粉煤灰泡沫混凝土熱工性質(zhì)研究[J];河南城建學(xué)院學(xué)報;2015年01期

7 高矗;申向東;王蕭蕭;張通;;石灰石粉對浮石混凝土力學(xué)性能和微觀結(jié)構(gòu)的影響[J];硅酸鹽通報;2014年07期

8 朱春玲;;我國外墻外保溫防火技術(shù)研究進展[J];墻材革新與建筑節(jié)能;2014年01期

9 霍俊芳;李偉玲;楊慧;崔琪;宋的添;;礦物摻合料對混合骨料混凝土抗凍性能的影響[J];混凝土;2013年09期

10 霍俊芳;王婷;;復(fù)摻礦物摻合料混合骨料混凝土微觀抗凍性研究[J];商品混凝土;2013年08期

相關(guān)博士學(xué)位論文 前1條

1 李紅云;引氣天然浮石輕骨料混凝土性能的試驗研究[D];內(nèi)蒙古農(nóng)業(yè)大學(xué);2009年

相關(guān)碩士學(xué)位論文 前8條

1 陳鈿淵;再生粗骨料強化對再生混凝土力學(xué)性能及耐久性能的影響[D];哈爾濱工業(yè)大學(xué);2016年

2 李金雪;新型城鎮(zhèn)化過程中建筑垃圾循環(huán)利用模式研究[D];山東師范大學(xué);2016年

3 李路蘋;陶粒輕集料結(jié)構(gòu)混凝土的性能試驗及其節(jié)能效果分析[D];浙江大學(xué);2015年

4 韓俊濤;天然輕骨料混凝土外摻粉煤灰力學(xué)性能及耐久性能試驗研究[D];內(nèi)蒙古農(nóng)業(yè)大學(xué);2013年

5 張冰;粉煤灰陶粒混凝土基本性能及相關(guān)耐久性能研究[D];內(nèi)蒙古科技大學(xué);2012年

6 沈鴻珍;輕骨料分形及不同分維級配的混凝土力學(xué)性能試驗研究[D];內(nèi)蒙古農(nóng)業(yè)大學(xué);2009年

7 張小云;自密實輕骨料混凝土試驗研究[D];大連理工大學(xué);2009年

8 王鵬;陶�；炷粱玖W(xué)性能的試驗研究[D];長沙理工大學(xué);2008年

，

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