鍍鋅批發鍍鋅鋼板為基板的彩涂鋼板，除有鋅保護外，鋅層上的有機涂層起了覆蓋隔離作用，可防止鋼板生銹，使用壽命比鍍鋅鋼板更長，據介紹涂層鋼板的使用壽命比鍍鋅鋼板長50%。昭通鍍鋅在連續機(ji)組上(shang)以冷軋(ya)帶鋼(gang)，鍍鋅(xin)帶鋼(gang)（電鍍鋅(xin)和(he)熱鍍鋅(xin)）為基板(ban)，經過(guo)表面預處(chu)理(li)（脫脂和(he)化學處(chu)理(li)），用輥(gun)涂(tu)(tu)的方法，涂(tu)(tu)上(shang)一層(ceng)(ceng)或多(duo)層(ceng)(ceng)液態涂(tu)(tu)料，經過(guo)烘烤和(he)冷卻所得的板(ban)材即為涂(tu)(tu)層(ceng)(ceng)鋼(gang)板(ban)。由(you)于涂(tu)(tu)層(ceng)(ceng)可以有各(ge)種不(bu)同的顏色，習慣上(shang)把(ba)涂(tu)(tu)層(ceng)(ceng)鋼(gang)板(ban)叫做彩色涂(tu)(tu)層(ceng)(ceng)鋼(gang)板(ban)。又由(you)于涂(tu)(tu)層(ceng)(ceng)是在鋼(gang)板(ban)成(cheng)型加(jia)工之前進(jin)行(xing)的，在國外這叫做預涂(tu)(tu)層(ceng)(ceng)鋼(gang)板(ban)。

用(yong)(yong)電(dian)鍍(du)(du)(du)法制造這(zhe)種鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)具(ju)有良好(hao)的(de)加(jia)工性(xing)。但鍍(du)(du)(du)層(ceng)(ceng)較薄(bo)，耐腐蝕性(xing)不如熱(re)浸法鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)板(ban)(ban)(ban)；單面鍍(du)(du)(du)和(he)雙(shuang)面差(cha)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)。單面鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)，即(ji)只在一面鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)的(de)產(chan)品。在焊接、涂(tu)裝(zhuang)、防銹處理、加(jia)工等(deng)方面，具(ju)有比雙(shuang)面鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)板(ban)(ban)(ban)好(hao)的(de)適應性(xing)。為克服單面未涂(tu)鋅(xin)(xin)(xin)(xin)(xin)(xin)的(de)缺(que)點，又(you)(you)有一種在另(ling)面涂(tu)以薄(bo)層(ceng)(ceng)鋅(xin)(xin)(xin)(xin)(xin)(xin)的(de)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)板(ban)(ban)(ban)，即(ji)雙(shuang)面差(cha)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)板(ban)(ban)(ban)；合金、復合鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)。它是用(yong)(yong)鋅(xin)(xin)(xin)(xin)(xin)(xin)和(he)其(qi)他金屬如鉛、鋅(xin)(xin)(xin)(xin)(xin)(xin)制成(cheng)合金乃至(zhi)復合鍍(du)(du)(du)成(cheng)的(de)鋼(gang)板(ban)(ban)(ban)。這(zhe)種鋼(gang)板(ban)(ban)(ban)既(ji)具(ju)有防銹性(xing)能，又(you)(you)有良好(hao)的(de)涂(tu)裝(zhuang)性(xing)能。 除上述五種外(wai)，還有彩色鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)、印花涂(tu)裝(zhuang)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)、聚氯乙(yi)烯(xi)疊層(ceng)(ceng)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)等(deng)。但目前常(chang)用(yong)(yong)的(de)仍為熱(re)浸鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)板(ban)(ban)(ban)。 鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)按用(yong)(yong)途又(you)(you)可分(fen)為一般用(yong)(yong)、屋頂用(yong)(yong)、建筑(zhu)外(wai)側板(ban)(ban)(ban)用(yong)(yong)、結構(gou)用(yong)(yong)、瓦壟板(ban)(ban)(ban)用(yong)(yong)、拉(la)伸用(yong)(yong)和(he)深沖(chong)用(yong)(yong)等(deng)鍍(du)(du)(du)鋅(xin)(xin)(xin)(xin)(xin)(xin)鋼(gang)板(ban)(ban)(ban)。

鍍(du)鋅卷分熱(re)鍍(du)鋅和電(dian)鍍(du)鋅兩種，熱(re)鍍(du)鋅鍍(du)鋅層厚，具有(you)(you)鍍(du)層均勻，附著力強，使用壽命長等優點(dian)。電(dian)鍍(du)鋅成本低，表面不是很(hen)光滑(hua)，其(qi)本身(shen)的(de)耐腐蝕(shi)性(xing)(xing)比熱(re)鍍(du)鋅管相差(cha)很(hen)多。提起鍍(du)鋅管，可(ke)能(neng)沒(mei)接觸過(guo)建材的(de)朋友并不了解。從1935年(nian)建立一條連續涂(tu)層鋼板線開(kai)始，彩(cai)涂(tu)板得(de)到了廣泛應用，目前彩(cai)涂(tu)板的(de)品(pin)種繁(fan)多，大約超過(guo)600種，彩(cai)涂(tu)板兼有(you)(you)機聚合物與鋼板兩者的(de)優點(dian)，既(ji)有(you)(you)有(you)(you)機聚合物的(de)良好著色性(xing)(xing)、成型性(xing)(xing)、耐蝕(shi)性(xing)(xing)、裝飾性(xing)(xing)、又(you)有(you)(you)鋼板的(de)高強度和易加工性(xing)(xing)，能(neng)很(hen)容易地進行沖壓裁剪、彎曲、深(shen)沖等加工。

我國(guo)建(jian)筑(zhu)業中，噪聲污(wu)(wu)染問題(ti)久(jiu)為人們所詬(gou)病。輕型樓(lou)承(cheng)板(ban)(ban)(ban)(ban)的(de)(de)(de)應(ying)用(yong)(yong)(yong)使得(de)土建(jian)建(jian)筑(zhu)物局面被(bei)打破(po)，集(ji)環境(jing)破(po)壞及污(wu)(wu)染少、材料回收(shou)和(he)利用(yong)(yong)(yong)率高、符合(he)可持續發展(zhan)要(yao)求等(deng)眾多優點于一身的(de)(de)(de)樓(lou)承(cheng)板(ban)(ban)(ban)(ban)建(jian)筑(zhu)應(ying)運(yun)而生(sheng)，逐步被(bei)人們所接受。輕型樓(lou)承(cheng)板(ban)(ban)(ban)(ban)是(shi)近十年來發展(zhan)較快的(de)(de)(de)領域，在(zai)采用(yong)(yong)(yong)輕型樓(lou)承(cheng)板(ban)(ban)(ban)(ban)占(zhan)非住宅建(jian)筑(zhu)投資(zi)的(de)(de)(de)50%以上。這(zhe)種結構工(gong)業化、商品化程度(du)高，施工(gong)快，綜(zong)合(he)效益高，市場需求量很大，已引(yin)起結構設計(ji)人員認識。樓(lou)承(cheng)板(ban)(ban)(ban)(ban)的(de)(de)(de)研究開發已在(zai)各地試點，是(shi)輕鋼發展(zhan)的(de)(de)(de)一個(ge)重要(yao)方向，目(mu)前已經有(you)多種的(de)(de)(de)低(di)層(ceng)、多層(ceng)和(he)高層(ceng)的(de)(de)(de)設計(ji)方案和(he)實例。

樓承(cheng)(cheng)板(ban)(ban)(ban)適(shi)應主體(ti)鋼結(jie)構快速施工(gong)(gong)的(de)要(yao)求(qiu)，能夠在(zai)短(duan)時間內提供堅定的(de)作業平臺，并可(ke)采用多個(ge)樓層(ceng)鋪(pu)設壓(ya)(ya)型鋼板(ban)(ban)(ban)，分層(ceng)澆筑(zhu)混(hun)(hun)(hun)凝土(tu)(tu)板(ban)(ban)(ban)的(de)流水施工(gong)(gong)。在(zai)使(shi)用階段樓承(cheng)(cheng)板(ban)(ban)(ban)作為混(hun)(hun)(hun)凝土(tu)(tu)樓板(ban)(ban)(ban)的(de)受(shou)拉鋼筋，也提高了樓板(ban)(ban)(ban)的(de)剛度(du)，節省了鋼筋和(he)混(hun)(hun)(hun)凝土(tu)(tu)的(de)用量。樓承(cheng)(cheng)板(ban)(ban)(ban)上(shang)(shang)面(mian)可(ke)以鋪(pu)設保(bao)溫，隔音(yin)，隔熱，隔振等(deng)材(cai)料。樓面(mian)性能充分發揮(hui)鋼的(de)良(liang)好(hao)的(de)抗拉強度(du)和(he)延(yan)性及(ji)混(hun)(hun)(hun)凝土(tu)(tu)優良(liang)的(de)抗壓(ya)(ya)強度(du)和(he)較大(da)的(de)剛度(du)。壓(ya)(ya)型板(ban)(ban)(ban)表面(mian)壓(ya)(ya)紋使(shi)樓承(cheng)(cheng)板(ban)(ban)(ban)與(yu)混(hun)(hun)(hun)凝土(tu)(tu)之間產(chan)生(sheng)大(da)的(de)結(jie)合力(li)(li)，使(shi)二者形成(cheng)整體(ti)，配(pei)以加勁肋，使(shi)樓承(cheng)(cheng)板(ban)(ban)(ban)系統具有高強承(cheng)(cheng)載力(li)(li)。在(zai)懸(xuan)臂條件(jian)下，樓承(cheng)(cheng)板(ban)(ban)(ban)僅(jin)作為性模(mo)板(ban)(ban)(ban)。懸(xuan)挑(tiao)的(de)長度(du)可(ke)根據樓承(cheng)(cheng)板(ban)(ban)(ban)的(de)截面(mian)特性來定。為了防止懸(xuan)挑(tiao)板(ban)(ban)(ban)的(de)開裂(lie)，需在(zai)支座處依結(jie)構工(gong)(gong)程師的(de)設計(ji)配(pei)上(shang)(shang)負筋。

重(zhong)慶樓(lou)承(cheng)板(ban)分(fen)兩種(zhong)。一種(zhong)是把(ba)樓(lou)承(cheng)板(ban)當(dang)做承(cheng)受拉力(li)的(de)(de)鋼(gang)筋(jin)(jin)計(ji)(ji)算的(de)(de)，另外一種(zhong)是僅把(ba)樓(lou)承(cheng)板(ban)作(zuo)為(wei)模(mo)板(ban)計(ji)(ji)算而(er)不(bu)參(can)與受力(li)的(de)(de)。做模(mo)板(ban)計(ji)(ji)算的(de)(de)比(bi)較簡單，直接按(an)照跨度(du)頂就行(xing)了(le)。2米以下(xia)選(xuan)0.8的(de)(de)，2-3米的(de)(de)選(xuan)1.0的(de)(de)。樓(lou)承(cheng)板(ban)作(zuo)為(wei)受力(li)鋼(gang)筋(jin)(jin)計(ji)(ji)算，就按(an)照模(mo)板(ban)的(de)(de)選(xuan)用樓(lou)承(cheng)板(ban)（或者(zhe)加(jia)厚且只能加(jia)厚），然后在計(ji)(ji)算配筋(jin)(jin)的(de)(de)時(shi)候可以按(an)照面積(ji)減少鋼(gang)筋(jin)(jin)用量。樓(lou)承(cheng)板(ban)不(bu)能單獨計(ji)(ji)算的(de)(de)，它和整個樓(lou)板(ban)是一個體系的(de)(de)。