選擇路(lu)牙(ya)(ya)石的(de)時候我們(men)可以用(yong)(yong)手敲(qiao)擊，好的(de)花崗巖路(lu)牙(ya)(ya)石通過敲(qiao)擊我們(men)可以聽到清(qing)脆(cui)的(de)聲音。而(er)質量稍差的(de)花崗巖路(lu)牙(ya)(ya)石聲音有些渾濁低沉，雜志較(jiao)多，pc路(lu)牙(ya)(ya)石多少(shao)錢一方，不夠耐(nai)用(yong)(yong)。pc路(lu)牙(ya)(ya)的(de)優點(dian):PC具(ju)有優異(yi)的(de)電絕緣性(xing)(xing)、延伸(shen)性(xing)(xing)、尺(chi)寸穩定性(xing)(xing)、耐(nai)化學腐蝕性(xing)(xing)、耐(nai)熱性(xing)(xing)、耐(nai)寒性(xing)(xing)不掉色(se)(se)等(deng)特點(dian)。具(ju)有自熄(xi)、阻燃、***、可著色(se)(se)。路(lu)牙(ya)(ya)石是在路(lu)面上(shang)區(qu)分車行(xing)道、人行(xing)道、綠地、隔離帶和(he)(he)道路(lu)其他部(bu)分的(de)界(jie)線(xian)，起到保障行(xing)人、車輛(liang)交(jiao)通安全和(he)(he)保證(zheng)路(lu)面邊(bian)緣整齊的(de)作(zuo)用(yong)(yong)。路(lu)沿石的(de)形式有立式，斜式和(he)(he)平式等(deng)。

路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)特點(dian)(dian)：路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)根據用(yong)料的(de)(de)不同，一(yi)般情況下(xia)分為(wei)兩種：即(ji)混(hun)凝土(tu)路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)和石(shi)(shi)(shi)(shi)材(cai)路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)。根據路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)的(de)(de)截面尺寸復可以(yi)分為(wei)H型路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)、T型路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)、R型路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)、F型路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)、TF型立(li)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)和P型平(ping)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)。路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)它的(de)(de)形式有(you)立(li)式，斜式和平(ping)式等。是花(hua)崗(gang)巖材(cai)質，具(ju)(ju)有(you)石(shi)(shi)(shi)(shi)質堅硬，耐(nai)磨損、耐(nai)酸堿、的(de)(de)特點(dian)(dian)。pc路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)的(de)(de)優(you)點(dian)(dian):PC具(ju)(ju)有(you)優(you)異(yi)的(de)(de)電絕緣性(xing)(xing)(xing)、延(yan)伸性(xing)(xing)(xing)、尺寸穩(wen)定(ding)性(xing)(xing)(xing)、耐(nai)化學腐(fu)蝕性(xing)(xing)(xing)、耐(nai)熱性(xing)(xing)(xing)、耐(nai)寒性(xing)(xing)(xing)不掉色等特點(dian)(dian)。具(ju)(ju)有(you)自(zi)熄、阻燃、***、可著(zhu)色。容易加工，價格(ge)低廉。路(lu)(lu)(lu)牙(ya)(ya)(ya)(ya)(ya)石(shi)(shi)(shi)(shi)用(yong)一(yi)般的(de)(de)實驗進行試一(yi)下(xia)，通常在(zai)路(lu)(lu)(lu)沿石(shi)(shi)(shi)(shi)的(de)(de)反(fan)面滴上(shang)一(yi)小滴墨水(shui)，如墨水(shui)很快四處渙散浸出，即(ji)表明路(lu)(lu)(lu)沿石(shi)(shi)(shi)(shi)內部顆粒較松或存在(zai)顯微(wei)裂隙(xi)，路(lu)(lu)(lu)沿石(shi)(shi)(shi)(shi)質量欠好(hao)；反(fan)之，若墨水(shui)滴在(zai)原處不動，則闡明路(lu)(lu)(lu)沿石(shi)(shi)(shi)(shi)細(xi)密(mi)質地好(hao)。

pc路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)再加上其色彩豐富，搭配多(duo)樣，價格低廉和(he)塑造性強，使預制(zhi)混凝土普遍(bian)用于建筑，交通，景觀園林等領域，在(zai)國民經濟中扮演重要(yao)(yao)的角色。路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)應(ying)用范(fan)圍(wei)十分(fen)(fen)廣泛，園林綠化、道路(lu)施工、房地產(chan)(chan)項目、舊城改造等各種基礎設施建設用量巨大。在(zai)挑選路(lu)沿石(shi)(shi)(shi)(shi)(shi)(shi)時(shi)要(yao)(yao)選擇(ze)那(nei)(nei)種沒(mei)有缺角的，表面(mian)比(bi)較光滑的，不(bu)要(yao)(yao)選擇(ze)那(nei)(nei)種表面(mian)不(bu)平整，有缺角的石(shi)(shi)(shi)(shi)(shi)(shi)材產(chan)(chan)品，要(yao)(yao)及時(shi)聯系(xi)廠(chang)家(jia)更換。路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)特(te)點：路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)根據用料的不(bu)同，一(yi)般情況下(xia)分(fen)(fen)為(wei)兩種：即混凝土路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)和(he)石(shi)(shi)(shi)(shi)(shi)(shi)材路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)。根據路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)的截面(mian)尺寸(cun)復(fu)可以(yi)分(fen)(fen)為(wei)H型路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)、T型路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)、R型路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)、F型路(lu)牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)、TF型立牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)和(he)P型平牙(ya)(ya)石(shi)(shi)(shi)(shi)(shi)(shi)。