水资源与水工程学报
水資源與水工程學報
수자원여수공정학보
JOURNAL OF WATER RESOURCES AND WATER ENGINEERING
2014年
2期
188-191
,共4页
橡胶颗粒%正交试验%极差法%方差法%抗冲磨强度
橡膠顆粒%正交試驗%極差法%方差法%抗遲磨彊度
상효과립%정교시험%겁차법%방차법%항충마강도
rubber particle%orthogonal test%range method%variance method%abrasion resistance
探讨了橡胶混凝土在不同水灰比、胶粒掺量、粒径大小的情况下的抗冲磨性能,为进一步改善混凝土的韧性和耐久性提供借鉴。在以往橡胶混凝土研究基础上,采用水下钢球法对混凝土进行抗冲磨强度试验,得出了橡胶混凝土在不同水灰比、胶粒掺量、粒径大小的情况下的抗冲磨性能。从本次试验中可以看出水灰比与橡胶混凝土的抗冲磨强度具有良好关系,水灰比小时,有利于提高混凝土的耐磨性,但是水灰比不能无限制的降低,必须能够提供胶凝材料完全水化所需的水分及保证施工过程中的和易性;随着橡胶颗粒掺量的增加,混凝土的耐磨性先提高后降低。橡胶掺量15%时混凝土的抗冲磨强度最高。当掺量达到30%时,抗冲磨强度反而比未掺入时低;掺入的三种粒径中掺入粒径为(2.36~4.75 mm)的混凝土耐磨性能最佳,其单位磨损量最小。胶粒掺量是影响抗冲磨性能的主要因素,其次为水灰比,第三是胶粒粒径的大小。
探討瞭橡膠混凝土在不同水灰比、膠粒摻量、粒徑大小的情況下的抗遲磨性能,為進一步改善混凝土的韌性和耐久性提供藉鑒。在以往橡膠混凝土研究基礎上,採用水下鋼毬法對混凝土進行抗遲磨彊度試驗,得齣瞭橡膠混凝土在不同水灰比、膠粒摻量、粒徑大小的情況下的抗遲磨性能。從本次試驗中可以看齣水灰比與橡膠混凝土的抗遲磨彊度具有良好關繫,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製的降低,必鬚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後降低。橡膠摻量15%時混凝土的抗遲磨彊度最高。噹摻量達到30%時,抗遲磨彊度反而比未摻入時低;摻入的三種粒徑中摻入粒徑為(2.36~4.75 mm)的混凝土耐磨性能最佳,其單位磨損量最小。膠粒摻量是影響抗遲磨性能的主要因素,其次為水灰比,第三是膠粒粒徑的大小。
탐토료상효혼응토재불동수회비、효립참량、립경대소적정황하적항충마성능,위진일보개선혼응토적인성화내구성제공차감。재이왕상효혼응토연구기출상,채용수하강구법대혼응토진행항충마강도시험,득출료상효혼응토재불동수회비、효립참량、립경대소적정황하적항충마성능。종본차시험중가이간출수회비여상효혼응토적항충마강도구유량호관계,수회비소시,유리우제고혼응토적내마성,단시수회비불능무한제적강저,필수능구제공효응재료완전수화소수적수분급보증시공과정중적화역성;수착상효과립참량적증가,혼응토적내마성선제고후강저。상효참량15%시혼응토적항충마강도최고。당참량체도30%시,항충마강도반이비미참입시저;참입적삼충립경중참입립경위(2.36~4.75 mm)적혼응토내마성능최가,기단위마손량최소。효립참량시영향항충마성능적주요인소,기차위수회비,제삼시효립립경적대소。
The thesis explored the abrasion resistance of rubber-filled concrete in different situations such as water to cement ratio ( W/C Ratio) , particles dosage , particles size in order to offer reference for improving the toughness and durability of concrete .Based on the previous study , the thesis adopted underwater meth-od to test the abrasion resistance of concrete and got the property of abrasion resistance of rubber -filled con-crete in the case of different water-cement ratioes , particles dosages , particle sizes .The experiment shows that the relationship between water to cement ratio and abrasion resistance of rubber -filled concrete is close . Less W/C ratio contributes to the abrasion resistance of rubber-filled concrete , but the ratio cannot cut down unlimited and must provide the required moisture of gelled material and ensure the workability in the process of construction;with the increase of mixing amount of rubber particles , the abrasion resistance of concrete first enhances and then reduces .When the mixing amount of rubber particles increases to 15%, the strength of abrasion resistance of concrete reaches the highest .while the dosage gets to 30%, the abrasion resistance of concrete is lower than that without mixing ;Among three particles dosages , the one added with the parti-cles of diameter (2.36~4.75mm) has the best resistance of concrete ,and their unit amount of wear intensi-ty is the lowest .The mixing amount of rubber particles is the main factor that affect abrasion resistance of rubber-filled concrete , followed by W/C ratio and particle size .