交通运输研究
交通運輸研究
교통운수연구
Transportation Standardization
2015年
5期
75-81
,共7页
纳米TiO2%沥青混合料%OGFC-10%尾气降解%路用性能
納米TiO2%瀝青混閤料%OGFC-10%尾氣降解%路用性能
납미TiO2%력청혼합료%OGFC-10%미기강해%로용성능
nano-TiO2%asphalt mixture%OGFC-10%degradation of automobile tail%road perfor-mance
从提高光催化材料性能出发，以锐钛型纳米TiO2作为光催化材料应用在沥青路面中。采用A （将纳米TiO2均匀分散在沥青中，以沥青为载体）和B （将纳米TiO2与矿粉均匀混合，以矿粉为载体）两种掺加方式将5%的纳米TiO2掺入到沥青混合料中，成型OGFC—10车辙板试件进行试验，确定最佳的掺加方式。研究不同掺量、光照强度对纳米TiO2光催化性能的影响，并对其路用性能进行试验分析。结果表明：相比B方式，A方式下成型的试件其光催化降解汽车尾气的效果更好，故选定A方式为纳米TiO2的后续试验研究的掺加方式；随着纳米TiO2掺量的不断增加，试件对HC、CO和NO三种尾气成分的降解效果越来越好，从综合降解效果和经济性考虑，选定5%为最佳掺量；纳米TiO2对尾气的降解效果随光照强度的增强越来越好；混合料的各项路用性能随着纳米TiO2的掺入而变得更好，所以实际工程应用中不必考虑其对混合料路用性能的不利影响。
從提高光催化材料性能齣髮，以銳鈦型納米TiO2作為光催化材料應用在瀝青路麵中。採用A （將納米TiO2均勻分散在瀝青中，以瀝青為載體）和B （將納米TiO2與礦粉均勻混閤，以礦粉為載體）兩種摻加方式將5%的納米TiO2摻入到瀝青混閤料中，成型OGFC—10車轍闆試件進行試驗，確定最佳的摻加方式。研究不同摻量、光照彊度對納米TiO2光催化性能的影響，併對其路用性能進行試驗分析。結果錶明：相比B方式，A方式下成型的試件其光催化降解汽車尾氣的效果更好，故選定A方式為納米TiO2的後續試驗研究的摻加方式；隨著納米TiO2摻量的不斷增加，試件對HC、CO和NO三種尾氣成分的降解效果越來越好，從綜閤降解效果和經濟性攷慮，選定5%為最佳摻量；納米TiO2對尾氣的降解效果隨光照彊度的增彊越來越好；混閤料的各項路用性能隨著納米TiO2的摻入而變得更好，所以實際工程應用中不必攷慮其對混閤料路用性能的不利影響。
종제고광최화재료성능출발，이예태형납미TiO2작위광최화재료응용재력청로면중。채용A （장납미TiO2균균분산재력청중，이력청위재체）화B （장납미TiO2여광분균균혼합，이광분위재체）량충참가방식장5%적납미TiO2참입도력청혼합료중，성형OGFC—10차철판시건진행시험，학정최가적참가방식。연구불동참량、광조강도대납미TiO2광최화성능적영향，병대기로용성능진행시험분석。결과표명：상비B방식，A방식하성형적시건기광최화강해기차미기적효과경호，고선정A방식위납미TiO2적후속시험연구적참가방식；수착납미TiO2참량적불단증가，시건대HC、CO화NO삼충미기성분적강해효과월래월호，종종합강해효과화경제성고필，선정5%위최가참량；납미TiO2대미기적강해효과수광조강도적증강월래월호；혼합료적각항로용성능수착납미TiO2적참입이변득경호，소이실제공정응용중불필고필기대혼합료로용성능적불리영향。
Starting from the improvement of the performance of the photocatalytic material, the anatase nano-TiO2 was used as the photocatalytic material in the asphalt pavement. The 5%of nano-TiO2 was mixed into the asphalt mixture by two kinds of ways called A(the nano-TiO2 was well dispersed in as?phalt , and the asphalt was the carrier) and B(the nano-TiO2 and powder were evenly mixed, and the pow?der was the carrier) to form the specimen of OGFC-10 rut board and test it, in order to confirm the best way of mixing. The influence of different dosage and light intensity on the photocatalysis performance of nano-TiO2 was studied, and its pavement performance was tested. The results show that:comparing with the method B, the specimen formed by method A has better effect on photocatalytic degradation of auto?mobile tail gas, so method A is selected as the mixing mode in subsequent tests;along with the increase of the content of nano-TiO2, the degradation effect of three kinds of automobile tail gas(HC, CO, NO) are becoming better and better;considering the degradation effect and the economic benefit, 5%is selectedas the best dosage of nano-TiO2; the degradation effect of nano-TiO2 on the tail gas are getting better with the increase of the intensity of illumination;all the indexes of pavement performance are getting bet?ter with the mixing of nano-TiO2, therefore it is not necessary to consider the influence of nano-TiO2 on the pavement performance of mixture in the practical engineering application.
