广西大学学报（自然科学版）
廣西大學學報（自然科學版）
엄서대학학보（자연과학판）
JOURNAL OF GUANGXI UNIVERSITY （NATURAL SCIENCE EDITION）
2013年
3期
687-695
,共9页
李頔%陈忠达%任皎龙%蒋应军
李頔%陳忠達%任皎龍%蔣應軍
리적%진충체%임교룡%장응군
道路工程%水泥粉煤灰稳定碎石%浆体强度%振动试验方法%力学特性%预估
道路工程%水泥粉煤灰穩定碎石%漿體彊度%振動試驗方法%力學特性%預估
도로공정%수니분매회은정쇄석%장체강도%진동시험방법%역학특성%예고
road engineering%cement-fly ash stabilized macadam%slurry strength%vibration meth-od%mechanical property%prediction
为了了解浆体对水泥粉煤灰稳定碎石力学性能的影响，首先研究了不同配比下水泥粉煤灰浆体与水泥粉煤灰细集料浆体强度特性，分析了浆体强度和龄期对水泥粉煤灰碎石整体力学特性的影响及其相关性，进而实现了基于浆体强度的水泥粉煤灰稳定碎石力学特性预估。结果表明：水泥粉煤灰浆体强度随龄期增长和水泥-粉煤灰掺量比降低而增大；在60 d前，水泥粉煤灰细集料浆体强度随龄期和细集料-粉煤灰掺量比的增长而增大，之后，随细集料-粉煤灰掺量比的增长而先增大后减小；浆体强度与水泥粉煤灰稳定碎石力学特性具有较高相关性；提出的预估方程符合水泥粉煤灰稳定碎石强度变化规律，具有明确的物理意义。建议水泥粉煤灰稳定碎石内掺粉煤灰掺量为4％～6％，外掺水泥剂量为3％～4％。
為瞭瞭解漿體對水泥粉煤灰穩定碎石力學性能的影響，首先研究瞭不同配比下水泥粉煤灰漿體與水泥粉煤灰細集料漿體彊度特性，分析瞭漿體彊度和齡期對水泥粉煤灰碎石整體力學特性的影響及其相關性，進而實現瞭基于漿體彊度的水泥粉煤灰穩定碎石力學特性預估。結果錶明：水泥粉煤灰漿體彊度隨齡期增長和水泥-粉煤灰摻量比降低而增大；在60 d前，水泥粉煤灰細集料漿體彊度隨齡期和細集料-粉煤灰摻量比的增長而增大，之後，隨細集料-粉煤灰摻量比的增長而先增大後減小；漿體彊度與水泥粉煤灰穩定碎石力學特性具有較高相關性；提齣的預估方程符閤水泥粉煤灰穩定碎石彊度變化規律，具有明確的物理意義。建議水泥粉煤灰穩定碎石內摻粉煤灰摻量為4％～6％，外摻水泥劑量為3％～4％。
위료료해장체대수니분매회은정쇄석역학성능적영향，수선연구료불동배비하수니분매회장체여수니분매회세집료장체강도특성，분석료장체강도화령기대수니분매회쇄석정체역학특성적영향급기상관성，진이실현료기우장체강도적수니분매회은정쇄석역학특성예고。결과표명：수니분매회장체강도수령기증장화수니-분매회참량비강저이증대；재60 d전，수니분매회세집료장체강도수령기화세집료-분매회참량비적증장이증대，지후，수세집료-분매회참량비적증장이선증대후감소；장체강도여수니분매회은정쇄석역학특성구유교고상관성；제출적예고방정부합수니분매회은정쇄석강도변화규률，구유명학적물리의의。건의수니분매회은정쇄석내참분매회참량위4％～6％，외참수니제량위3％～4％。
In order to reveal the influence of slurry strength on cement-fly ash-stabilized macadam performance , strength characteristics of cement-fly ash slurry and cement-fly ash fine aggregate slur-ry of different proportion were studied .The influence of slurry strength and age on the mechanical properties of the cement-fly ash gravel was analyzed .Finally, the mechanical properties of slurry strength based and cement-fly ash stabilized macadam was predicted .The results indicate that along with the increase of age and the decrease of dosage ratio of cement -fly ash, the strength of fly ash ce-ment slurry increases;in the first 60 d, along with the increase of age and dosage ratio of fine aggre-gate-fly ash, the strength of cement-fly ash fine aggregate slurry increases;after 60 d, the strength of cement-fly ash fine aggregate slurry increases first and then decreases with the increase of the dos-age ratio of fine aggregate-fly ash;there is a high correlation between the slurry strength and the me-chanical properties of cement-fly ash stabilized macadam;the proposed prediction equation has clear physical meaning and correlates well with the strength change of cement-fly ash stabilized macadam;in cement-fly ash stabilized macadam , the suggested proportions of fly ash and cement are 4%~6%and 3%~4%, respectively .
