道牙磚(zhuan)是怎么(me)鋪的

　　道牙磚根據(ju)(ju)用(yong)料(liao)的不同，一般情況下分為兩種：即(ji)混凝(ning)土路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)和(he)石(shi)(shi)(shi)(shi)材路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)。根據(ju)(ju)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)的截(jie)面尺寸可以分為H型(xing)(xing)(xing)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)、T型(xing)(xing)(xing)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)、R型(xing)(xing)(xing)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)、F型(xing)(xing)(xing)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)、TF型(xing)(xing)(xing)立沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)和(he)P型(xing)(xing)(xing)平(ping)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)。按路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)的線(xian)(xian)型(xing)(xing)(xing)分類為曲線(xian)(xian)型(xing)(xing)(xing)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)、直線(xian)(xian)型(xing)(xing)(xing)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)。火(huo)燒板曲線(xian)(xian)型(xing)(xing)(xing)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)可配合直線(xian)(xian)型(xing)(xing)(xing)路(lu)(lu)沿(yan)(yan)(yan)(yan)(yan)石(shi)(shi)(shi)(shi)使用(yong)。

　　道(dao)牙磚(zhuan)石料采用質地均勻的(de)(de)天然石材(cai)機械切削(xue)加工而成，石材(cai)的(de)(de)強度必須合(he)格，要求其(qi)色澤均勻，表面(mian)無裂紋，棱角完整，外觀一致(zhi)，無明顯斑點、色差，不(bu)允許有風化現(xian)象，裝(zhuang)卸時不(bu)準摔、砸、撞、碰，以免造成損傷。

　　道牙(ya)磚的形式(shi)(shi)有立式(shi)(shi)，斜式(shi)(shi)和(he)平式(shi)(shi)等(deng)。由(you)于(yu)是花崗(gang)巖(yan)材(cai)質，所以石質堅(jian)硬，耐磨損、耐酸(suan)堿、物美價廉。作為一種(zhong)鋪設路面的輔助材(cai)料，既可以美化(hua)道路又可以保護路面不受破壞。

　　路基的(de)(de)(de)開挖(wa)：根(gen)據設(she)計(ji)的(de)(de)(de)要求，路床(chuang)開挖(wa)，清理土方，并(bing)達(da)到(dao)設(she)計(ji)標高；檢(jian)查縱坡、橫坡及邊線，是否符合設(she)計(ji)要求；修整路基，找(zhao)平(ping)碾壓密實，壓實系數(shu)達(da)95%以上，并(bing)注意地下埋設(she)的(de)(de)(de)管(guan)線。

　　道牙磚墊(dian)層(ceng)的鋪(pu)(pu)設：鋪(pu)(pu)設60mm厚的中砂

　　基層的鋪設(she)：鋪設(she)壓實的級配(pei)碎石(shi)200mm厚(hou)，（粒徑5-60mm）壓實系(xi)數達93%以上。

　　找(zhao)平(ping)(ping)層的(de)鋪設(she)：找(zhao)平(ping)(ping)層用中砂(sha)，30mm厚，中砂(sha)要(yao)求(qiu)具有(you)一(yi)定(ding)的(de)級(ji)配，即粒(li)徑0.3-5mm的(de)級(ji)配砂(sha)找(zhao)平(ping)(ping)。

　　面(mian)(mian)層(ceng)鋪(pu)(pu)(pu)設(she)：面(mian)(mian)層(ceng)為透水磚(zhuan)(zhuan)，在(zai)鋪(pu)(pu)(pu)設(she)時，應(ying)根(gen)據(ju)設(she)計圖案鋪(pu)(pu)(pu)設(she)透水磚(zhuan)(zhuan)，鋪(pu)(pu)(pu)設(she)時應(ying)輕輕平(ping)放，用橡膠(jiao)錘(chui)錘(chui)打穩定，但(dan)不得損傷磚(zhuan)(zhuan)的邊角，質量要求符合聯(lian)鎖型路面(mian)(mian)磚(zhuan)(zhuan)路面(mian)(mian)施(shi)工(gong)及驗收規程CJJ79-98規定。

　　接縫(feng)砂的要(yao)求：路邊石接縫(feng)用砂的質量應符合CJJ79-98要(yao)求。