西部交通科技
西部交通科技
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WESTERN CHINA COMMUNICATION SCIENCE & TECHNOLOGY
2012年
10期
12-16
,共5页
布敦岩沥青(BRA)%沥青混合料%路用性能%掺量
佈敦巖瀝青(BRA)%瀝青混閤料%路用性能%摻量
포돈암력청(BRA)%력청혼합료%로용성능%참량
Buton rock asphalt(BRA)%Asphalt mixture%Pavement performance%Admixture amount
文章以道路材料实验室为依托,通过中海油AH-70#基质沥青、布敦岩沥青（BRA）、SBS改性沥青混合料的对比试验,研究以干法掺入不同BRA掺量的改性沥青混合料的综合路用性能。结果表明：布敦岩沥青混合料的高温稳定性、水稳定性和低温性能明显优于基质沥青混合料;当BRA掺量为3%时,混合料各项指标均已接近或达到了SBS改性沥青沥青混合料的性能,而当掺量从3%增加到4%时,混合料的高温性能、水稳性能均有所降低,因此,工程应用中的布敦岩沥青掺量宜在3%附近。
文章以道路材料實驗室為依託,通過中海油AH-70#基質瀝青、佈敦巖瀝青（BRA）、SBS改性瀝青混閤料的對比試驗,研究以榦法摻入不同BRA摻量的改性瀝青混閤料的綜閤路用性能。結果錶明：佈敦巖瀝青混閤料的高溫穩定性、水穩定性和低溫性能明顯優于基質瀝青混閤料;噹BRA摻量為3%時,混閤料各項指標均已接近或達到瞭SBS改性瀝青瀝青混閤料的性能,而噹摻量從3%增加到4%時,混閤料的高溫性能、水穩性能均有所降低,因此,工程應用中的佈敦巖瀝青摻量宜在3%附近。
문장이도로재료실험실위의탁,통과중해유AH-70#기질력청、포돈암력청（BRA）、SBS개성력청혼합료적대비시험,연구이간법참입불동BRA참량적개성력청혼합료적종합로용성능。결과표명：포돈암력청혼합료적고온은정성、수은정성화저온성능명현우우기질력청혼합료;당BRA참량위3%시,혼합료각항지표균이접근혹체도료SBS개성력청력청혼합료적성능,이당참량종3%증가도4%시,혼합료적고온성능、수은성능균유소강저,인차,공정응용중적포돈암력청참량의재3%부근。
Relying on the road materials laboratory,and through the comparative test of CNOOC AH-70# base asphalt,Buton rock asphalt(BRA) and SBS modified asphalt mixtures, the article studied the comprehensive pavement performance of modified asphalt mixtures with the addition of different BRA admixture amount.The results showed that:the high-temperature stability,water stability and low-temperature performance of Buton rock asphalt mixtures were significantly better than the base asphalt mixtures;when BRA admixture amount was 3%,all indicators of the mixture were close to or reached the performance of SBS modified bituminous asphalt mixture,when the admixture amount increased from 3% to 4%,the high temperature performance and water stability performance of the mixture decreased,thus the admixture amount of Buton rock asphalt used in engineering should be around 3 %.
