提高二灰碎石路用性能的试验研究
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摘要
通过本项目的研究,力求在现有的施工机具和施工管理水平下,从原材料控制、混合料配合比设计、施工工艺控制等方面进行改进,达到提高二灰碎石基层材料的路用性能,增强基层材料的抗冻性、抗裂性,减少路面病害,提高路面使用质量。
结合东北地区公路建设需求和自然气候条件,研究适合北方寒冷地区使用的二灰碎石基层原材料要求、组成设计方法、设计原则、施工工艺等问题,是二灰碎石在寒冷地区公路建设中适用性的重要内容。本论文在此前提下,重点研究了以下一些相关技术。
(1)原材料指标对二灰碎石性能的影响,主要指石灰、粉煤灰、碎石等原材料的技术指标对二灰碎石强度、收缩性、抗冻性的影响;
(2)嵌挤结构二灰碎石的组成结构特性、设计方法;
(3)嵌挤结构二灰碎石的强度和模量、抗疲劳、抗收缩指标;
(4)二灰碎石抗冻最低强度要求、抗冻指标要求和抗冻试验方法的研究;
(5)二灰碎石的施工工艺控制。
In the highway development ,the lime fly-ash crushed stone is getting the extensive application ,with its high strength and the whole is good . Large quantity experience research and analysis are being done since the“seventh-five year“period pointed to the engineering characteristics , the craft of model and experimental methods.All those are the foundation of the enlarged application of the lime fly-ash crushed stone . But in recent years with its usage ,we find that there are many shortages influencing its extensive application such as the low tensile strength ,the low anti-cracking and anti- tired, the low tenacity and anti-freezed etc .The writer of this paper has done many experiences research and analyzes to find the way how to improve on its function used in the highway construction according to the actual facts in the engineering and the indoor experiments .
The fine degree, the water content and the deposit time of the slaked lime influence the quality of lime fly-ash crushed stone .The fine degree of the fly ash influences the strength , the contractility and the anti-cracking of the lime fly-ash crushed stone .The strength and the soil contain of the aggregate influences its strength and contractility .This paper has given the index sign request of the raw material through the experiments.
Structure composition and gradation design of crushed base layer of lime and fly ash play the most important role on the highway performance. Based on a large number of projects and indoor tests, the framework structure of base layer can provide great strength, and volumetric method can assure the design index. With the summary of test road in Jilin Province, the crushed base layer of lime and fly ash with framework structure has good performance.
Frost resistance is a very difficult problem to the crushed base layer of lime and fly ash. Based on researches and indoor tests, the paper puts forward the request of least strength for frost resistance, and builds the frost resistance index and the method of frost resistance test.
Construction technique is most important for crushed base layer of lime and fly ash to satisfy the design index. According to the construction of test road, the uniformity inspection, and researches of paving and rolling, the paper puts forward the problems existing in construction and improving solution methods.
结合东北地区公路建设需求和自然气候条件,研究适合北方寒冷地区使用的二灰碎石基层原材料要求、组成设计方法、设计原则、施工工艺等问题,是二灰碎石在寒冷地区公路建设中适用性的重要内容。本论文在此前提下,重点研究了以下一些相关技术。
(1)原材料指标对二灰碎石性能的影响,主要指石灰、粉煤灰、碎石等原材料的技术指标对二灰碎石强度、收缩性、抗冻性的影响;
(2)嵌挤结构二灰碎石的组成结构特性、设计方法;
(3)嵌挤结构二灰碎石的强度和模量、抗疲劳、抗收缩指标;
(4)二灰碎石抗冻最低强度要求、抗冻指标要求和抗冻试验方法的研究;
(5)二灰碎石的施工工艺控制。
In the highway development ,the lime fly-ash crushed stone is getting the extensive application ,with its high strength and the whole is good . Large quantity experience research and analysis are being done since the“seventh-five year“period pointed to the engineering characteristics , the craft of model and experimental methods.All those are the foundation of the enlarged application of the lime fly-ash crushed stone . But in recent years with its usage ,we find that there are many shortages influencing its extensive application such as the low tensile strength ,the low anti-cracking and anti- tired, the low tenacity and anti-freezed etc .The writer of this paper has done many experiences research and analyzes to find the way how to improve on its function used in the highway construction according to the actual facts in the engineering and the indoor experiments .
The fine degree, the water content and the deposit time of the slaked lime influence the quality of lime fly-ash crushed stone .The fine degree of the fly ash influences the strength , the contractility and the anti-cracking of the lime fly-ash crushed stone .The strength and the soil contain of the aggregate influences its strength and contractility .This paper has given the index sign request of the raw material through the experiments.
Structure composition and gradation design of crushed base layer of lime and fly ash play the most important role on the highway performance. Based on a large number of projects and indoor tests, the framework structure of base layer can provide great strength, and volumetric method can assure the design index. With the summary of test road in Jilin Province, the crushed base layer of lime and fly ash with framework structure has good performance.
Frost resistance is a very difficult problem to the crushed base layer of lime and fly ash. Based on researches and indoor tests, the paper puts forward the request of least strength for frost resistance, and builds the frost resistance index and the method of frost resistance test.
Construction technique is most important for crushed base layer of lime and fly ash to satisfy the design index. According to the construction of test road, the uniformity inspection, and researches of paving and rolling, the paper puts forward the problems existing in construction and improving solution methods.
引文
[1] 陈志国, 孙岩. 复合基层材料在寒冷地区高等级公路中的应用研究. 第一届全国公路科技创新高层论坛论文集. 北京. 外文出版社. 2002:103～111
[2] 刘忠根, 陈志国. 几种半刚性材料抗冻性能试验及结果分析. 东北公路. 1998, 21,(2):33~36
[3] An Investigation of the performance of nine major roads having cement-bound granular bases.RRL LR 196.1968
[4] A.A.Lilley.Cement Stadilized materials for road and airfield pavement.1971
[5] Ksaibaiti K.Evalution of Cement Treated Bases with Fly ash.Transport & Road Research,1995,4(4):18~32
[6] 邓学均, 黄晓明. 路面设计原理与方法. 人民交通出版社. 2000
[7] West RC.CRC handbook of chemistry and physics. Clevel and Ohio:Chemical Rubber Pub,1998.D-254
[8] 黄卫, 钱国超. 南京机场高速公路半刚性基层特性研究. “省门第一路”建设论文集.1998: 178～197
[9] 张东青, 柳艳玲. 长余高速公路二灰碎石施工总结. 吉林省交通科技增刊. 2002:50～52
[10] 林绣贤. 半刚性基层沥青路面的研究. 中国公路学报. 1990,(4):1~9
[11] 周晓龙. “半刚性混合料振动压实技术”课题研究报告. 1992
[12] 孙美丽. 振碾工艺下二灰碎石的组成设计方法. 东北公路. 1998,21(2)30~32
[13] 邱云峰, 钱春香, 王保龙, 崔吉浩. 二灰碎石基层材料抗冻性和早强技术的试验研究. 华东公路. 2001(3):52~54
[14] 孙德栋 , 秦玉层 . 提高二灰碎石早期强度试验研究 . 公路 . 2001,(9):122~124
[15] 严家及. 道路建筑材料. 人民交通出版社. 2000
[16] 徐培华, 王安玲. 公路工程混合料配合比设计与试验技术手册. 人民交通出版社,2001:1~102
[17] Mihta P K, Schiessl P, Raupach M .Performance and durability of concrete systems [A].Team 4Members/FHWA. Response Performance of Coarse Graded Mixes at Wes Track-Final Report.June. 1998
[18]姜爱峰, 任惠清, 二灰碎石组成配合比设计. 同济大学学报. 1999,27(3):309~313
[19] 蒋振雄. 二灰碎石配合比设计的初步探讨. 公路. 1996(3):29~32
[20] 潘国进, 吴荣伟, 吕锡坤. 二灰碎石混合料组成设计构想. 华东公路. 2001(3):49~51
[21] 辛德刚, 王哲人, 周晓龙. 高速公路沥青路面材料与结构. 人民交通出版社.2001
[22] 关长禄, 陶志政. 长余高速公路沥青路面施工控制技术. 吉林人民出版社. 2003
[23] 习应祥. 几种常用的半刚性材料路用性能试验研究及应用. 长沙交通学院学报. 1994,3(1):20～32
[24] 叶其业. 上海浦东国际机场场道半刚性基层材料配合比设计. 港口工程. 1998,6(3):17~20
[25] HRP Protocol, P46, Resilient Modulus of Unbound Granular Base Materials and Subgrade Soils.
[26] J.Heisey, etc.Moduli of Pavement Systems form Spectal Analysis of Surface Waves. TRR852,1982
[27] 叶其业. 上海浦东国际机场场道半刚性基层材料配合比设计. 港口工程. 1998, 6(3):17~20
[28] 初日德, 聂毓琴. 材料力学. 吉林科学技术出版社. 1995
[29] 冯德成, 王彩霞, 吴思刚. “半刚性基层抗冻指标的研究”研究报告. 2003
[30] Joseph K.Litynski.Numerical Classification of Climate.WCP, 1983
[31] 王保龙,李迎春,钱春香. 二灰碎石基层材料防冻剂和防冻机理研究. 东南大学学报. 2001,31(4):75~80
[32] 李广智, 张洪贵, 柴红珍. 水工抗冻混凝土设计指标问题的探讨. 低温建筑技术. 2002(3):33～34
[33] Kadar,P.Accelerated full scale testing of thin CTB pavements-beerburrum,Queensland.1986
[34] 刘树堂,商庆森,姚占勇. 无机结合料稳定粉土的抗冻试验研究. 山东交通科技. 1999(2):17~19
[35] 杨锡武,梁权富. 水泥(石灰)粉煤灰碎石混合料半刚性路面基层设计参数研究.重庆交通学院学报. 1996,9(3):43~46
[36] 杨力. 路面用混凝土自然冻融循环试验.东北公路. 1996(4):25~28
[37] 潘钢华,秦鸿根,孙伟,张金山. 粉煤灰混凝土冻融机理研究. 建筑材料学报. 2002,5(1):37~42
[38] Cement-Stabilized Soil.Highway Reserch Rcord No.379.1972
[39] A.Hald.Statistiacal Theory with Engineering Applications.New York, John Wiley&Sons,Inc.London Chapman Hall,Limitied,1952
[40] Murphy,H.W.Cement treated pavements-from the unpredictable to the dependable. 14thARRB Conference.1998
[2] 刘忠根, 陈志国. 几种半刚性材料抗冻性能试验及结果分析. 东北公路. 1998, 21,(2):33~36
[3] An Investigation of the performance of nine major roads having cement-bound granular bases.RRL LR 196.1968
[4] A.A.Lilley.Cement Stadilized materials for road and airfield pavement.1971
[5] Ksaibaiti K.Evalution of Cement Treated Bases with Fly ash.Transport & Road Research,1995,4(4):18~32
[6] 邓学均, 黄晓明. 路面设计原理与方法. 人民交通出版社. 2000
[7] West RC.CRC handbook of chemistry and physics. Clevel and Ohio:Chemical Rubber Pub,1998.D-254
[8] 黄卫, 钱国超. 南京机场高速公路半刚性基层特性研究. “省门第一路”建设论文集.1998: 178～197
[9] 张东青, 柳艳玲. 长余高速公路二灰碎石施工总结. 吉林省交通科技增刊. 2002:50～52
[10] 林绣贤. 半刚性基层沥青路面的研究. 中国公路学报. 1990,(4):1~9
[11] 周晓龙. “半刚性混合料振动压实技术”课题研究报告. 1992
[12] 孙美丽. 振碾工艺下二灰碎石的组成设计方法. 东北公路. 1998,21(2)30~32
[13] 邱云峰, 钱春香, 王保龙, 崔吉浩. 二灰碎石基层材料抗冻性和早强技术的试验研究. 华东公路. 2001(3):52~54
[14] 孙德栋 , 秦玉层 . 提高二灰碎石早期强度试验研究 . 公路 . 2001,(9):122~124
[15] 严家及. 道路建筑材料. 人民交通出版社. 2000
[16] 徐培华, 王安玲. 公路工程混合料配合比设计与试验技术手册. 人民交通出版社,2001:1~102
[17] Mihta P K, Schiessl P, Raupach M .Performance and durability of concrete systems [A].Team 4Members/FHWA. Response Performance of Coarse Graded Mixes at Wes Track-Final Report.June. 1998
[18]姜爱峰, 任惠清, 二灰碎石组成配合比设计. 同济大学学报. 1999,27(3):309~313
[19] 蒋振雄. 二灰碎石配合比设计的初步探讨. 公路. 1996(3):29~32
[20] 潘国进, 吴荣伟, 吕锡坤. 二灰碎石混合料组成设计构想. 华东公路. 2001(3):49~51
[21] 辛德刚, 王哲人, 周晓龙. 高速公路沥青路面材料与结构. 人民交通出版社.2001
[22] 关长禄, 陶志政. 长余高速公路沥青路面施工控制技术. 吉林人民出版社. 2003
[23] 习应祥. 几种常用的半刚性材料路用性能试验研究及应用. 长沙交通学院学报. 1994,3(1):20～32
[24] 叶其业. 上海浦东国际机场场道半刚性基层材料配合比设计. 港口工程. 1998,6(3):17~20
[25] HRP Protocol, P46, Resilient Modulus of Unbound Granular Base Materials and Subgrade Soils.
[26] J.Heisey, etc.Moduli of Pavement Systems form Spectal Analysis of Surface Waves. TRR852,1982
[27] 叶其业. 上海浦东国际机场场道半刚性基层材料配合比设计. 港口工程. 1998, 6(3):17~20
[28] 初日德, 聂毓琴. 材料力学. 吉林科学技术出版社. 1995
[29] 冯德成, 王彩霞, 吴思刚. “半刚性基层抗冻指标的研究”研究报告. 2003
[30] Joseph K.Litynski.Numerical Classification of Climate.WCP, 1983
[31] 王保龙,李迎春,钱春香. 二灰碎石基层材料防冻剂和防冻机理研究. 东南大学学报. 2001,31(4):75~80
[32] 李广智, 张洪贵, 柴红珍. 水工抗冻混凝土设计指标问题的探讨. 低温建筑技术. 2002(3):33～34
[33] Kadar,P.Accelerated full scale testing of thin CTB pavements-beerburrum,Queensland.1986
[34] 刘树堂,商庆森,姚占勇. 无机结合料稳定粉土的抗冻试验研究. 山东交通科技. 1999(2):17~19
[35] 杨锡武,梁权富. 水泥(石灰)粉煤灰碎石混合料半刚性路面基层设计参数研究.重庆交通学院学报. 1996,9(3):43~46
[36] 杨力. 路面用混凝土自然冻融循环试验.东北公路. 1996(4):25~28
[37] 潘钢华,秦鸿根,孙伟,张金山. 粉煤灰混凝土冻融机理研究. 建筑材料学报. 2002,5(1):37~42
[38] Cement-Stabilized Soil.Highway Reserch Rcord No.379.1972
[39] A.Hald.Statistiacal Theory with Engineering Applications.New York, John Wiley&Sons,Inc.London Chapman Hall,Limitied,1952
[40] Murphy,H.W.Cement treated pavements-from the unpredictable to the dependable. 14thARRB Conference.1998