膠�；炷亮W性能試驗研究
發(fā)布時間：2018-11-17 09:49
【摘要】：廢舊輪胎數量逐年增加,屬于一種工業(yè)廢棄物。所以廢舊輪胎處理及再利用成為各國亟待解決的問題。已有研究表明,將廢舊輪胎粉碎摻入水泥混凝土中,可以改善混凝土的性能。本文將廢舊輪胎加工成粒徑小于5mm的顆粒,按一定的比例替代等體積的砂子配制成膠�；炷�。采用了不同水灰比,不同膠粒摻量,不同膠粒粒徑,三因素三水平的正交試驗方案。通過試拌,成型,養(yǎng)護,探討了28天齡期的不同水灰比,不同膠粒摻量,不同膠粒粒徑的膠�；炷恋牧W性能、彈性模量及抗沖磨強度;及各因素對其的影響關系。研究結果表明,橡膠顆粒摻入降低了膠�；炷恋目箟簭姸取⑴褟姸染陀诨鶞试嚰鄳目箟簭�、劈裂強度。通過試驗結果可以發(fā)現橡膠顆粒摻量變化對強度降低的影響程度大于橡膠顆粒粒徑變化產生的影響;同一種粒徑下,膠�；炷�28d齡期抗壓強度、劈裂強度隨橡膠顆粒摻量的增加均表現出降低的趨勢;在橡膠顆粒摻量相同情況下,膠�；炷�28d齡期抗壓強度、劈裂強度均隨橡膠顆粒粒徑的減小而降低�；炷恋暮瑲饬侩S膠粒摻量的增加而顯著增加,而且膠粒顆粒的粒徑越小,混凝土含氣量增加的幅度越大;混凝土的彈性模量相對于基準混凝土明顯降低;膠粒混凝土28d彈性模量受膠粒摻量的影響最大,且隨著膠粒摻量增加而降低。水灰比與膠�；炷恋目箾_磨強度具有良好關系,水灰比小時,有利于提高混凝土的耐磨性,但是水灰比不能無限制的降低,必須能夠提供膠凝材料完全水化所需的水分及保證施工過程中的和易性;隨著橡膠顆粒摻量的增加,混凝土的耐磨性先提高后降低。橡膠摻量15%時混凝土的抗沖磨強度最高,當摻量達到30%時,抗沖磨強度反而比未摻入時低;摻入的三種粒徑中摻入粒徑為(2.36-4.75mm)的混凝土耐磨性能最佳,其單位磨損量最小。
[Abstract]:The waste tire quantity increases year by year, belongs to one kind of industrial waste. Therefore, waste tire treatment and reuse has become an urgent problem in various countries. It has been shown that the performance of cement concrete can be improved by grinding waste tires into cement concrete. In this paper, the waste tire is processed into particles with diameter less than 5mm, and the equal volume of sand is replaced by a certain proportion to form concrete. The orthogonal experimental scheme with different water-cement ratio, different content of rubber particles, different particle size and three factors and three levels was adopted. Through trial mixing, molding and curing, the mechanical properties, elastic modulus and impact wear strength of concrete with different water / cement ratio, different amount of rubber particles and different particle sizes of 28 days were discussed, as well as the influence of various factors on it. The results show that the compressive strength of the concrete is decreased with the addition of rubber particles, and the splitting strength is lower than the corresponding compressive strength and splitting strength of the standard specimen. It is found that the influence of rubber particle content on strength reduction is greater than that of rubber particle size change. Under the same particle size, the compressive strength and splitting strength of concrete at 28 d age decreased with the increase of rubber particle content. Under the condition of the same amount of rubber particles, the compressive strength and splitting strength of concrete at 28 d age decreased with the decrease of rubber particle size. The air content of concrete increases significantly with the increase of the content of rubber particles, and the smaller the particle size, the larger the increase of air content of concrete, and the lower the elastic modulus of concrete is compared with the standard concrete, the smaller the particle size is, the larger the increase of air content in concrete is. The elastic modulus of grained concrete is the most affected by the content of colloidal particles in 28 days, and decreases with the increase of the content of rubber particles. The water-cement ratio has a good relationship with the impact and wear strength of the concrete. The low water-cement ratio can improve the wear resistance of concrete, but the water-cement ratio can not be reduced indefinitely. Must be able to provide the moisture required for the complete hydration of the cementitious material and ensure ease during construction; With the increase of rubber particle content, the wear resistance of concrete first increases and then decreases. The anti-wear strength of concrete is the highest when the rubber content is 15 and when it reaches 30%, the anti-wear strength of concrete is lower than that of the unadulterated concrete. The wear resistance of concrete mixed with 2.36-4.75mm is the best and the unit wear is the smallest.
【學位授予單位】：西北農林科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU528
本文編號：2337351
[Abstract]:The waste tire quantity increases year by year, belongs to one kind of industrial waste. Therefore, waste tire treatment and reuse has become an urgent problem in various countries. It has been shown that the performance of cement concrete can be improved by grinding waste tires into cement concrete. In this paper, the waste tire is processed into particles with diameter less than 5mm, and the equal volume of sand is replaced by a certain proportion to form concrete. The orthogonal experimental scheme with different water-cement ratio, different content of rubber particles, different particle size and three factors and three levels was adopted. Through trial mixing, molding and curing, the mechanical properties, elastic modulus and impact wear strength of concrete with different water / cement ratio, different amount of rubber particles and different particle sizes of 28 days were discussed, as well as the influence of various factors on it. The results show that the compressive strength of the concrete is decreased with the addition of rubber particles, and the splitting strength is lower than the corresponding compressive strength and splitting strength of the standard specimen. It is found that the influence of rubber particle content on strength reduction is greater than that of rubber particle size change. Under the same particle size, the compressive strength and splitting strength of concrete at 28 d age decreased with the increase of rubber particle content. Under the condition of the same amount of rubber particles, the compressive strength and splitting strength of concrete at 28 d age decreased with the decrease of rubber particle size. The air content of concrete increases significantly with the increase of the content of rubber particles, and the smaller the particle size, the larger the increase of air content of concrete, and the lower the elastic modulus of concrete is compared with the standard concrete, the smaller the particle size is, the larger the increase of air content in concrete is. The elastic modulus of grained concrete is the most affected by the content of colloidal particles in 28 days, and decreases with the increase of the content of rubber particles. The water-cement ratio has a good relationship with the impact and wear strength of the concrete. The low water-cement ratio can improve the wear resistance of concrete, but the water-cement ratio can not be reduced indefinitely. Must be able to provide the moisture required for the complete hydration of the cementitious material and ensure ease during construction; With the increase of rubber particle content, the wear resistance of concrete first increases and then decreases. The anti-wear strength of concrete is the highest when the rubber content is 15 and when it reaches 30%, the anti-wear strength of concrete is lower than that of the unadulterated concrete. The wear resistance of concrete mixed with 2.36-4.75mm is the best and the unit wear is the smallest.
【學位授予單位】：西北農林科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU528
【共引文獻】
相關期刊論文 前10條
1 張樹勛;朱霞;陳俊斌;姚曉玲;趙萍;武小琴;;基于模糊聚類分析的軍用附屬油料包裝規(guī)格優(yōu)化研究[J];包裝工程;2014年11期
2 王琦;婁宗科;;膠�；炷涟韬衔锖瑲饬垦芯縖J];水利與建筑工程學報;2014年03期
3 羅德江;姚霖;魏友華;;礦產資源開發(fā)效率模糊綜合評價模型——以攀西地區(qū)釩鈦磁鐵礦為例[J];桂林理工大學學報;2014年04期
4 楊新磊;;影視演員片酬的指標體系及其定價模型[J];廣義虛擬經濟研究;2015年03期
5 陳中泰;馬寧;亓越;;基于模糊數學的林農退耕還林工程參與意愿聚類分析——以云南和甘肅兩省為例[J];林業(yè)經濟;2014年06期
6 王江榮;趙振學;文暉;羅資琴;;基于投影尋蹤賦權的TOPSIS法在煤炭種類識別中的應用[J];煤;2014年12期
7 王江榮;趙振學;羅資琴;文暉;;基于模糊非線性回歸的煤炭發(fā)熱量預測研究[J];潔凈煤技術;2015年01期
8 王江榮;文暉;羅資琴;;基于模糊時間序列的工作面瓦斯?jié)舛阮A測分析[J];現代礦業(yè);2015年01期
9 常賽;;模糊理論在Ad hoc網絡通信領域的應用[J];科技視界;2015年25期
10 鄭曉云;李夢璐;韓麗娜;;基于模糊聚類分析的大型工程物流分類管理分析[J];山西建筑;2015年32期
相關碩士學位論文 前1條
1 姚文龍;基于CAE塑料齒輪注塑成型工藝參數優(yōu)化研究[D];中南林業(yè)科技大學;2015年
，本文編號：2337351
本文鏈接：http://sikaile.net/kejilunwen/huaxuehuagong/2337351.html
