基于模拟试验的固化风积沙路用性能研究
|
摘要
为系统、全面地研究固化风积沙混合料的路用性能和耐久性,文章以毛乌素沙地的风积沙为主要筑路材料,采用水泥、石灰、石膏和KL-ST76固化剂稳定风积沙,确定了四种混合料最佳配比,并对四种配比混合料的力学性能(抗压强度、劈裂强度和抗压回弹模量)、抗冻性能、抗干缩性能以及抗温缩性能进行了试验研究。结果表明:KL-ST76固化剂稳定风积沙混合料的无侧限抗压强度、劈裂强度、抗压回弹模量及抗干缩性能、抗温缩性能明显高于其他三种配比混合料;四种配比混合料的抗冻性能相近。
In order to systematically and comprehensively study the road performance and durability of cured aeolian sand mixture,with the aeolian sand in Maowusu Sandy Land as the main road building material,and by using the cement,lime,gypsum and KL-ST76 curing agent to stabilize the aeolian sand,this article determined four optimal mix ratios of mixtures,and conducted the experimental study on the mechanical properties(compressive strength,splitting strength and compressive resilience modulus),antifreeze performance,dry shrinkage resistance performance and temperature shrinkage resistance properties of the mixtures under four mix ratios.The results showed that the unconfined compressive strength,splitting strength,compressive resilience modulus,dry shrinkage resistance performance and temperature shrinkage resistance properties of aeolian sand mixture stabilized by KL-ST76 curing agent are significantly higher than mixtures under other three ratios;and all these four mixtures have similar antifreeze resistance.
In order to systematically and comprehensively study the road performance and durability of cured aeolian sand mixture,with the aeolian sand in Maowusu Sandy Land as the main road building material,and by using the cement,lime,gypsum and KL-ST76 curing agent to stabilize the aeolian sand,this article determined four optimal mix ratios of mixtures,and conducted the experimental study on the mechanical properties(compressive strength,splitting strength and compressive resilience modulus),antifreeze performance,dry shrinkage resistance performance and temperature shrinkage resistance properties of the mixtures under four mix ratios.The results showed that the unconfined compressive strength,splitting strength,compressive resilience modulus,dry shrinkage resistance performance and temperature shrinkage resistance properties of aeolian sand mixture stabilized by KL-ST76 curing agent are significantly higher than mixtures under other three ratios;and all these four mixtures have similar antifreeze resistance.
引文
[1]郑军,阎长虹,夏文俊,等.CMSC型固化剂改良土的新型CBR试验研究[J].工程地质学报,2008,16(4):551-556.
[2]方祥位,孙树国,陈正汉,等.GT型土壤固化剂改良土的工程特性研究[J].岩土力学,2006,27(9):1545-1548.
[3]王红肖,王银梅,高立成,等.固化剂改良黄土的水稳定特性[J].低温建筑技术,2014,36(2):115-118.
[4]徐平,乐金朝,马清文,等.土壤固化剂稳定粉质黏土性能的试验研究[J].建筑材料学报,2010,13(1):57-61.
[5]姚正毅,王涛,韩致文,等.3种固沙剂固沙能力的野外试验研究[J].水土保持研究,2008,15(2):66-68.
[6]牛存洋,宗芹,骆永明,等.科尔沁沙地流动沙丘塑料防沙网防风固沙效果试验[J].水土保持学报,2013,27(4):12-16.
[7]王迎,杨鹏,周燕.风积沙路基稳定性分析[J].公路工程,2015,40(1):18-22,28.
[8]张浩,刘江,胡江洋,等.陕北地区毛乌素沙漠公路风积沙工程特性研究[J].合肥工业大学学报:自然科学版,2015,38(8):1103-1108.
[9]张展,龚海科,谢永利,等.内蒙古自治区风积沙的工程特性[J].河北工业大学学报,2006,35(3):112-117.
[10]穆国兵,陈黎.营双高速公路风积沙压实特性试验研究[J].公路交通科技(应用技术版),2014,10(3):59-61.
[11]张浩,李哲,折学森,等.毛乌素地区不同级配风积沙的压实特性与压缩特性试验研究[J].干旱区资源与环境,2015,29(8):167-172.
[12]王朝辉,王选仓,谭雪琴.路用风积沙固化剂配制及其混合料性能[J].中南大学学报:自然科学版,2011,42(1):192-198.
[13]JTJ057-94,公路工程无机结合料稳定材料试验规程[S].
[2]方祥位,孙树国,陈正汉,等.GT型土壤固化剂改良土的工程特性研究[J].岩土力学,2006,27(9):1545-1548.
[3]王红肖,王银梅,高立成,等.固化剂改良黄土的水稳定特性[J].低温建筑技术,2014,36(2):115-118.
[4]徐平,乐金朝,马清文,等.土壤固化剂稳定粉质黏土性能的试验研究[J].建筑材料学报,2010,13(1):57-61.
[5]姚正毅,王涛,韩致文,等.3种固沙剂固沙能力的野外试验研究[J].水土保持研究,2008,15(2):66-68.
[6]牛存洋,宗芹,骆永明,等.科尔沁沙地流动沙丘塑料防沙网防风固沙效果试验[J].水土保持学报,2013,27(4):12-16.
[7]王迎,杨鹏,周燕.风积沙路基稳定性分析[J].公路工程,2015,40(1):18-22,28.
[8]张浩,刘江,胡江洋,等.陕北地区毛乌素沙漠公路风积沙工程特性研究[J].合肥工业大学学报:自然科学版,2015,38(8):1103-1108.
[9]张展,龚海科,谢永利,等.内蒙古自治区风积沙的工程特性[J].河北工业大学学报,2006,35(3):112-117.
[10]穆国兵,陈黎.营双高速公路风积沙压实特性试验研究[J].公路交通科技(应用技术版),2014,10(3):59-61.
[11]张浩,李哲,折学森,等.毛乌素地区不同级配风积沙的压实特性与压缩特性试验研究[J].干旱区资源与环境,2015,29(8):167-172.
[12]王朝辉,王选仓,谭雪琴.路用风积沙固化剂配制及其混合料性能[J].中南大学学报:自然科学版,2011,42(1):192-198.
[13]JTJ057-94,公路工程无机结合料稳定材料试验规程[S].