12月20日，由中国交(jiao)通(tong)(tong)(tong)运(yun)输协会交(jiao)通(tong)(tong)(tong)工程设施分会和黑龙江省交(jiao)通(tong)(tong)(tong)运(yun)输厅共(gong)同举(ju)办(ban)的(de)(de)“交(jiao)通(tong)(tong)(tong)运(yun)输行(xing)业科技前沿技术(shu)(shu)(shu)研(yan)讨会暨2022年度(du)交(jiao)通(tong)(tong)(tong)运(yun)输行(xing)业智慧低(di)碳技术(shu)(shu)(shu)推荐目录入(ru)选表(biao)彰”大会在(zai)哈尔(er)滨举(ju)行(xing)，湖(hu)(hu)南省醴(li)潭高速公路建设开(kai)发(fa)有(you)限(xian)公司与(yu)湖(hu)(hu)南省交(jiao)通(tong)(tong)(tong)科学研(yan)究院有(you)限(xian)公司共(gong)同研(yan)发(fa)的(de)(de)钢渣沥(li)青路面(mian)(mian)表(biao)面(mian)(mian)层低(di)碳施工技术(shu)(shu)(shu)与(yu)低(di)碳超(chao)薄罩面(mian)(mian)技术(shu)(shu)(shu)入(ru)选并获得表(biao)彰。

近年来，在国家(jia)不(bu)断加强矿产资源管理的(de)(de)(de)背(bei)景(jing)下，全国在册矿山(shan)数量(liang)(liang)持续减(jian)少，钢(gang)(gang)渣(zha)(zha)作为炼钢(gang)(gang)过程(cheng)(cheng)(cheng)中(zhong)的(de)(de)(de)副产品，其产量(liang)(liang)为粗钢(gang)(gang)产量(liang)(liang)的(de)(de)(de)10%~15%，具有坚固、耐(nai)磨、针(zhen)片状含量(liang)(liang)小等特点(dian)，可替代天然集料应用(yong)于(yu)沥青混(hun)合(he)(he)(he)料中(zhong)，从而减(jian)少石料开采，同(tong)时节约钢(gang)(gang)渣(zha)(zha)堆放占(zhan)用(yong)的(de)(de)(de)大量(liang)(liang)土地。针(zhen)对钢(gang)(gang)渣(zha)(zha)多孔、密(mi)度大、导热系数变(bian)异性大的(de)(de)(de)特点(dian)，结(jie)合(he)(he)(he)工(gong)程(cheng)(cheng)(cheng)实际(ji)，醴潭(tan)公司提(ti)出(chu)了(le)钢(gang)(gang)渣(zha)(zha)沥青混(hun)合(he)(he)(he)料的(de)(de)(de)施(shi)工(gong)技术要点(dian)，具体包括(kuo)调节烘(hong)干(gan)筒(tong)燃(ran)烧器的(de)(de)(de)供油量(liang)(liang)、延长混(hun)合(he)(he)(he)料湿(shi)拌时间(jian)、合(he)(he)(he)理配置运料车数量(liang)(liang)，注重施(shi)工(gong)工(gong)序衔接(jie)等，从而保障了(le)钢(gang)(gang)渣(zha)(zha)沥青路面(mian)的(de)(de)(de)施(shi)工(gong)质量(liang)(liang)。钢(gang)(gang)渣(zha)(zha)沥青混(hun)合(he)(he)(he)料应用(yong)于(yu)路面(mian)表(biao)面(mian)层的(de)(de)(de)示范(fan)工(gong)程(cheng)(cheng)(cheng)包括(kuo)醴潭(tan)高速公路路面(mian)中(zhong)修工(gong)程(cheng)(cheng)(cheng)、平益高速公路新建工(gong)程(cheng)(cheng)(cheng)、湘钢(gang)(gang)厂区道路路面(mian)维修工(gong)程(cheng)(cheng)(cheng)等，具有显著的(de)(de)(de)环境和经济效(xiao)益。

沥青路(lu)(lu)面服(fu)役(yi)一(yi)(yi)定年限后不(bu)可(ke)避(bi)免地会(hui)产生一(yi)(yi)些表面层(ceng)(ceng)功(gong)能(neng)(neng)(neng)性(xing)(xing)病害，如松(song)散、裂缝、抗滑性(xing)(xing)能(neng)(neng)(neng)迅速衰减(jian)等(deng)，从而影响(xiang)路(lu)(lu)面的使用(yong)(yong)(yong)性(xing)(xing)能(neng)(neng)(neng)和寿命(ming)。针对沥青路(lu)(lu)面路(lu)(lu)面结构强度(du)良好而表面层(ceng)(ceng)出现(xian)功(gong)能(neng)(neng)(neng)性(xing)(xing)病害的养(yang)护措(cuo)施，是(shi)沥青路(lu)(lu)面预(yu)防性(xing)(xing)养(yang)护技术(shu)研究热点之一(yi)(yi)。低碳超(chao)(chao)薄(bo)罩(zhao)面采(cai)用(yong)(yong)(yong)骨架密实型间断级(ji)配(pei)热拌沥青混合(he)料，能(neng)(neng)(neng)充分利用(yong)(yong)(yong)集(ji)料，解决(jue)碎石场(chang)该档集(ji)料容易过剩问题；其厚(hou)度(du)薄(bo)，相(xiang)对传(chuan)统铣刨(bao)重铺(pu)节省(sheng)造价约20%，节省(sheng)天然碎石资源约65%，相(xiang)对减(jian)碳约58%。为了保证(zheng)了超(chao)(chao)薄(bo)罩(zhao)面与原路(lu)(lu)面粘结强度(du)，醴谭公司开发了专用(yong)(yong)(yong)黏层(ceng)(ceng)油，通过控制(zhi)最大沥青用(yong)(yong)(yong)量、车辙(zhe)最大变形(xing)(xing)量等(deng)指标，形(xing)(xing)成(cheng)了一(yi)(yi)套可(ke)实现(xian)混合(he)料结构性(xing)(xing)能(neng)(neng)(neng)与功(gong)能(neng)(neng)(neng)性(xing)(xing)能(neng)(neng)(neng)同(tong)步设(she)计的超(chao)(chao)薄(bo)磨(mo)耗层(ceng)(ceng)配(pei)合(he)比(bi)设(she)计方法；低碳超(chao)(chao)薄(bo)罩(zhao)面具有(you)良好的降噪(zao)效果，可(ke)降低行驶(shi)噪(zao)音约6 ~ 8dB。

科技是(shi)(shi)第(di)一(yi)生产力、创新是(shi)(shi)第(di)一(yi)动力。交通(tong)运输行(xing)业对建设材料、能源消耗投入量大，对生态环境扰动范(fan)围广，是(shi)(shi)绿色(se)低(di)(di)碳(tan)转型的重要领(ling)域(yu)。醴潭公(gong)司将持续加强(qiang)交通(tong)运输领(ling)域(yu)智(zhi)(zhi)慧低(di)(di)碳(tan)技术(shu)宣传(chuan)、交流以(yi)及创新成果(guo)转化应(ying)用(yong)，真正做到智(zhi)(zhi)慧低(di)(di)碳(tan)、创新引领(ling)、品质提升。（醴潭公(gong)司   彭昊慧）