交通标准化
交通標準化
교통표준화
COMMUNICATIONS STANDARDIZATION
2014年
19期
126-130
,共5页
泡沫沥青%冷再生%水泥%混合料
泡沫瀝青%冷再生%水泥%混閤料
포말력청%랭재생%수니%혼합료
foam asphalt%cold recycling%cement%mixture
通过室内试验和理论分析，研究水泥掺量的变化对泡沫沥青冷再生混合料的物理力学性能、水稳定性、抗剪切性能及高温稳定性的影响规律。研究结果表明，由于水泥既可作为优质的细集料，又是一种碱性水硬材料，能够与沥青反应生成黏度和强度更高的物质，因而能有效改善泡沫沥青冷再生混合料的性能；当水泥掺量由0增加到3%时，混合料的孔隙率降低了1.2%，残留强度比则增加了22.15%，养护7d后的动稳定度提高了65%左右，而作为黏结层时，与面层及基层的黏结力分别提高了0.88MPa和0.54MPa。
通過室內試驗和理論分析，研究水泥摻量的變化對泡沫瀝青冷再生混閤料的物理力學性能、水穩定性、抗剪切性能及高溫穩定性的影響規律。研究結果錶明，由于水泥既可作為優質的細集料，又是一種堿性水硬材料，能夠與瀝青反應生成黏度和彊度更高的物質，因而能有效改善泡沫瀝青冷再生混閤料的性能；噹水泥摻量由0增加到3%時，混閤料的孔隙率降低瞭1.2%，殘留彊度比則增加瞭22.15%，養護7d後的動穩定度提高瞭65%左右，而作為黏結層時，與麵層及基層的黏結力分彆提高瞭0.88MPa和0.54MPa。
통과실내시험화이론분석，연구수니참량적변화대포말력청랭재생혼합료적물리역학성능、수은정성、항전절성능급고온은정성적영향규률。연구결과표명，유우수니기가작위우질적세집료，우시일충감성수경재료，능구여력청반응생성점도화강도경고적물질，인이능유효개선포말력청랭재생혼합료적성능；당수니참량유0증가도3%시，혼합료적공극솔강저료1.2%，잔류강도비칙증가료22.15%，양호7d후적동은정도제고료65%좌우，이작위점결층시，여면층급기층적점결력분별제고료0.88MPa화0.54MPa。
The article analyzes the influence law of the amount changing of cement on the physical and mechanical properties, water stability, shear resistance and high temperature stability of foam asphalt through laboratory tests and theoretical analysis. The results show that the cement can effectively improve the performance of the cold recycling mixture with foamed asphalt, because it can be used as high-quality fine aggregate, and can generate new material with higher viscosity and strength in the reaction with as-phalt due to its alkaline and hydraulic;when the cement amount increases from 0 to 3%, the mixture po-rosity is decreased by 1.2%, the residual strength ratio is increased by 22.15%, the dynamic stability after 7 days′ cure also is increased by about 65%, and when being used as the adhesive layer, the adhesive force to the surface and base is increased by 0.88MPa and 0.54MPa.
