CAJ | 학술논문

将煤沥青与秦皇岛AH-90沥青进行调和及乳化,考察调和沥青及调和后乳化沥青的性质,研究煤沥青的种类及掺量对调和沥青及乳化沥青性质的影响规律。结果表明：煤沥青中大量甲苯不溶物(煤粉)的存在使得调和沥青和乳化沥青蒸发残留物的25℃延度大幅度下降,难以达到标准要求；l #和2#煤沥青最大掺量分别为25%和20%时,乳化沥青的l d和5 d稳定性合格；相同煤沥青掺量时,l#调和沥青及乳化沥青蒸发残留物较相应的2#调和沥青及乳化沥青蒸发残留物的针入度小、25℃延度大、软化点高；随着煤沥青掺量的增大,两种调和沥青及乳化沥青蒸发残留物的25℃延度、针入度都呈现下降趋势,软化点呈升高趋势。
장매력청여진황도AH-90력청진행조화급유화,고찰조화력청급조화후유화력청적성질,연구매력청적충류급참량대조화력청급유화력청성질적영향규률。결과표명：매력청중대량갑분불용물(매분)적존재사득조화력청화유화력청증발잔류물적25℃연도대폭도하강,난이체도표준요구；l #화2#매력청최대참량분별위25%화20%시,유화력청적l d화5 d은정성합격；상동매력청참량시,l#조화력청급유화력청증발잔류물교상응적2#조화력청급유화력청증발잔류물적침입도소、25℃연도대、연화점고；수착매력청참량적증대,량충조화력청급유화력청증발잔류물적25℃연도、침입도도정현하강추세,연화점정승고추세。
TwO types Of cOal tar pitches and QinhuangdaO AH-90 petrOleum asphalt were blended and emulsified. The influ-ences Of cOal tar pitch types and dOsages On the prOperties Of blended asphalt and emulsified asphalt were investigated. The experimental results shOw that the cOal tar pitches cOntaining a lOt Of tOluene insOluble ( pulverized cOal) lead tO the ductility at 25 ℃ Of the blended asphalt and evapOratiOn residue Of the emulsified asphalt decrease significantly, which cannOt meet the specificatiOn. When the maximal dOsages Of cOal tar pitch l# and 2# are 25% and 20%, the ld and 5d stability results Of the emulsified asphalts meet the standard. At the same cOal tar pitch dOsage, the blended asphalt and its emulsiOn evapOra-tiOn residue by adding cOal tar pitch l # have less penetratiOn at 25 ℃, and have larger ductility at 25 ℃ and sOftening than thOse by adding 2#. With the dOsage Of the twO cOal tar pitches increasing, the blended asphalts and the emulsiOn evapOratiOn residues present the reduced tendency fOr ductility and penetratiOn at 25℃, while the sOftening pOint shOws increasing trend.