反(fan)射(she)裂(lie)縫(feng)是(shi)瀝(li)青(qing)路(lu)麵(mian)普(pu)遍(bian)存(cun)在(zai)的(de)一(yi)種(zhong)病(bing)害(hai)現(xian)象(xiang)。根(gen)據(ju)國(guo)內(nei)外(wai)道(dao)路(lu)工(gong)程(cheng)的(de)實(shi)踐(jian)，在(zai)瀝(li)青(qing)麵(mian)層(ceng)和(he)中(zhong)集(ji)瀝(li)青(qing)混(hun)合(he)料(liao)層(ceng)或(huo)粗(cu)集(ji)瀝(li)青(qing)混(hun)合(he)料(liao)層(ceng)之(zhi)間(jian)鋪(pu)設(she)一(yi)層(ceng)土(tu)工(gong)織(zhi)物(wu)，可(ke)用(yong)以(yi)消(xiao)除(chu)或(huo)減(jian)緩(huan)麵(mian)層(ceng)反(fan)射(she)裂(lie)縫(feng)的(de)產(chan)生(sheng)，從(cong)而(er)延(yan)長(chang)道(dao)路(lu)的(de)使(shi)用(yong)壽(shou)命(ming)
，降(jiang)低(di)維(wei)修(xiu)成(cheng)本(ben)。但(dan)是(shi)，由(you)於(yu)瀝(li)青(qing)路(lu)麵(mian)澆(jiao)注(zhu)時(shi)的(de)溫(wen)度(du)高(gao)達(da)160℃-180℃，致使土工織物褶皺
、變形、ruanhua，shiqixingnengdadajiangdi，budannanyixiaochuhuojianhuanmiancengfansheliefengdechansheng，erqieshideliqinglumiangengjiaaotubuping
，erboxiantugonggezhasuoteyoudexingneng，wanquanmanzuliqinglumiandeyaoqiu
，muqianxuduogongchengyishiyongboxiantugonggezha。

　　玻纖應用於瀝青道路時

，可在以下幾方麵發揮作用。

　　（1）抗疲勞開裂

　　liqinglumianbixujuyouyidingdechengzainengli
，zaiguidingdeshijianneibunengfashengpilaopohuai。liqinglumianzaizhijieyuchelunjiechudexiamiancengshoudaoyali，zailunzaibianyuanyiwaidequyu，miancengshoudaolalizuoyong，youyuliangchushouliquyusuoshoulixingzhibutong，eryoubicijinkao，yincizailiangkuaishouliquyudejiaojiechujilidetubianchufashengpohuai，zaichangqihezaidezuoyongxia，fashengpilaokailie。

　　boxiantugonggezhazailiqingmiancengzhong
，nenggoujiangshangshudeyayingliyulayinglifensan
，zailiangkuaishouliquyuzhijianxingchenghuanchongdai，jianshaoleyinglitubianduiliqingmiancengdepohuai。tongshibolixianweitugonggezhadediyanshenlvjianshaolelumiandewanchenliang，baozhenglelumianbuhuifashengguodubianxing。

　　（2） 耐高溫車轍

　　瀝li青qing混hun凝ning土tu在zai高gao溫wen時shi具ju有you流liu變bian性xing，在zai車che輛liang荷he載zai作zuo用yong下xia
，受shou力li區qu域yu產chan生sheng凹ao陷xian，車che輛liang荷he載zai撤che除chu後hou，瀝li青qing麵mian層ceng無wu法fa完wan全quan恢hui複fu原yuan狀zhuang態tai，即ji產chan生sheng了le塑su性xing變bian形xing，在zai車che輛liang反fan複fu碾nian壓ya的de作zuo用yong下xia，塑su性xing變bian形xing不bu斷duan積ji累lei
，形xing成cheng車che轍zhe。通tong過guo瀝li青qing麵mian層ceng結jie構gou分fen析xi可ke知zhi
，高gao溫wen下xia的de瀝li青qing混hun凝ning土tu在zai受shou到dao荷he載zai的de碾nian壓ya作zuo用yong，形xing成cheng了le微wei量liang的de波bo形xing流liu變bian，麵mian層ceng中zhong沒mei有you任ren何he可ke以yi約yue束shu瀝li青qing混hun凝ning土tu流liu變bian的de骨gu架jia材cai料liao
，造zao成cheng瀝li青qing麵mian層ceng流liu變bian的de累lei積ji疊die加jia，這zhe是shi形xing成cheng車che轍zhe的de根gen本ben所suo在zai。

　　在(zai)瀝(li)青(qing)麵(mian)層(ceng)中(zhong)使(shi)用(yong)玻(bo)纖(xian)土(tu)工(gong)格(ge)柵(zha)
，其(qi)在(zai)瀝(li)青(qing)麵(mian)層(ceng)中(zhong)起(qi)到(dao)骨(gu)架(jia)作(zuo)用(yong)，瀝(li)青(qing)砼(tong)中(zhong)集(ji)料(liao)貫(guan)穿(chuan)於(yu)格(ge)柵(zha)間(jian)，形(xing)成(cheng)複(fu)合(he)力(li)學(xue)嵌(qian)鎖(suo)體(ti)係(xi)，限(xian)製(zhi)集(ji)料(liao)運(yun)動(dong)，增(zeng)加(jia)了(le)瀝(li)青(qing)麵(mian)層(ceng)中(zhong)的(de)橫(heng)向(xiang)約(yue)束(shu)力(li)，瀝(li)青(qing)麵(mian)層(ceng)中(zhong)各(ge)部(bu)分(fen)彼(bi)此(ci)牽(qian)製(zhi)，防(fang)止(zhi)了(le)瀝(li)青(qing)麵(mian)層(ceng)的(de)推(tui)移(yi)，從(cong)而(er)起(qi)到(dao)抵(di)抗(kang)車(che)轍(zhe)的(de)作(zuo)用(yong)。

　　（3） 抗低溫縮裂

　　嚴yan寒han時shi期qi，瀝li青qing混hun凝ning土tu麵mian層ceng的de溫wen度du近jin於yu氣qi溫wen，瀝li青qing砼tong遇yu冷leng收shou縮suo

，產chan生sheng拉la應ying力li
，在zai受shou到dao荷he載zai反fan複fu作zuo用yong下xia，拉la應ying力li進jin一yi步bu增zeng加jia
，當dang拉la應ying力li超chao過guo瀝li青qing砼tong拉la伸shen強qiang度du時shi
，產chan生sheng裂lie紋wen，在zai裂lie紋wen兩liang端duan處chu
，拉la應ying力li更geng加jia集ji中zhong，裂lie紋wen逐zhu步bu形xing成cheng裂lie縫feng，造zao成cheng病bing害hai。

　　boxiantugonggezhazhiyuliqingzhong，shideliqingtongdelashenqiangdudadatigao，zugoudikangzhujiaodadelayinglierbuzhifashenglumianpohuai，jishiyinweijubuquyuchanshengweixiaoliewen
，liewenchudeyinglijizhong，jingboxiantugonggezhadechuandierxiaoshi，liewenbuhuifazhanchengliefeng。

　　（4） 延緩反射裂縫

　　裂(lie)縫(feng)產(chan)生(sheng)的(de)反(fan)射(she)有(you)兩(liang)種(zhong)，一(yi)種(zhong)是(shi)麵(mian)層(ceng)產(chan)生(sheng)裂(lie)縫(feng)後(hou)，裂(lie)縫(feng)向(xiang)下(xia)反(fan)射(she)，破(po)壞(huai)下(xia)層(ceng)結(jie)構(gou)，降(jiang)低(di)路(lu)麵(mian)結(jie)構(gou)強(qiang)度(du)，在(zai)雨(yu)水(shui)時(shi)節(jie)
，水(shui)進(jin)入(ru)裂(lie)縫(feng)中(zhong)，在(zai)交(jiao)通(tong)荷(he)載(zai)（輪胎壓力）的de反fan複fu抵di壓ya，水shui在zai裂lie縫feng中zhong產chan生sheng水shui壓ya，水shui不bu斷duan的de衝chong擊ji瀝li青qing混hun合he料liao，導dao致zhi裂lie縫feng擴kuo大da。另ling一yi種zhong是shi舊jiu麵mian層ceng原yuan有you裂lie縫feng
，路lu基ji層ceng或huo下xia層ceng路lu基ji層ceng產chan生sheng的de裂lie縫feng向xiang上shang反fan射she，新xin罩zhao路lu麵mian無wu法fa承cheng受shou因yin底di層ceng移yi動dong而er產chan生sheng的de剪jian切qie力li和he抗kang伸shen應ying力li
，導dao致zhi路lu麵mian麵mian層ceng裂lie縫feng。

　　在瀝青罩麵層中加鋪玻纖土工格柵夾層

，抑製應力，釋放應變，增強瀝青混凝土整體強度
，達到防止裂縫向上或向下反射的目的。