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Sir hai hoa giQa
gach khong nung va gach dat set nung
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Hien nay, co rat nhieu loai vat iieu co th^ thay the ggch dat set nung trong xay dyng, dac biet la cac logi vat lieu xSy khong nung. Tuy nhi^n, san pham truyen th6ng tti bao dOi nay v^n dugc nhieu ngudi ti^u dung ua ehupng. Vay nguydn nhan do dSu?
GachdSts^t nung ^ mdt g6c d6 nio d6vlndUtfc ddnh gid \k vSt liSu truyen thong CO g\i trj.Theoyki^n cQa mdt s6 doanh nghiep lith^nhviSn H6i VLXDVN, can 6iy nhanh vi^cloalb6 trl§td^cdcl6 gach thO cdng tii 66 giim $6 Itfcmg gach nung trong t6ng s6 v&t li^uxiy.Xda bd cdng ngh^
lac h&u chCr khdng phdi l i xda bd hodn todn sdn phJm truydn th6ng.
Tinh truygn thong iviot loai vSt li§u xay dang da ton tai hang tram nam qua, no da an sau vao trong tiem thdc cua ngadi dan, vi vay vi^c sC(
dung gach dat set nung (gach do) da trd thanh thoi quen Gach do da duac dua vao cac cong trinh 16n nho ti/ lau, duoc kiem nghidm qua thOi gian, khi hau, vi vay ma ngucii s\i dung cSmthayyentamhon B^n canh do, nhieu cong trinh kien true truyen thong cCia ngiiOi Viet nhif nha 6, dinh, chua, mieu... van coi gach do la v3t lieu dac tnfng khong the thieu. Sac biet, khi xa h^i cang phat trien thi nhu cau xay diing nhOng cong trinh tam linh, nha 6 theo toi truydn thdng lai
cang phat trien. Oieu nay cung tang sSn laong tieu thu gach 36. Theo ni§n giam thong ke, nam 2010 gach d6 tieu thu dat dinh dilm cao nhSt khoang tren 20 ty vi^n. Day cung la thdi dilm ma cac s3n pham gach xay kh6ng nung bat dau tham nhap vao thi tracing Viet Nam mot c^ch manh me.
Tuy nhien, gach dat set nung CO nhieu nhaoc diem trong san xuat do sir dung nguyen lieu la dat nong nghiep, sSn xuat gay 6 nhiem mdi trudng vi vay can phai xoa bd cac Id thu cdng, lac hau. Thay vl s^n xuat gach xay thdng dyng, chCing ta nen tap trung vao viec sSn xuat c^c sSn pham trang tri cao cap hon, tham my han hoac gach
9w Sdn phdm gochkhOng nung nhu AAC ch6t iupng ddm bdo, tinh uu vi^t cOng Jdn, dieu ndy dd dupc Jd^m nghidm bdi nhieu cdng trinh, tuy nhi^n, do tinh dQc thii c6n dupc bdo qudn, thi cdng cQngphdi dung quy cdch, ddm bdo cdc y&u cdu k^ thuOt mdi trdnh dupc tinh trong niit, gdy.««
dac chung mang lai gia tti l(int!
te han cho nganh cong nghiep vat lieu xay dung, dong ilioi giam dace mdt khoan ngoai te diing cho nhap khau cac loai san pham cao cap khac, Thi cong thuan tien Do san pham nay da cd lich sd lau dai trong san xuat va sii dung VI vay ngiidi tho xay da
"quen tay" khi thi cdng Theo T.STliai Duy Sam Pho Chu tich kiem Tong Thu l(y Hgi VUCDVN, dng da trac tiep hdi nhClng ngadi tho thi cdng tai cdng trinh va daoc ho tr5 Idi, xay bang gach dlt s^t nung thi chi can nhlc vi§n gach bSng mot tay, do khd vCfa va khdi lifong khdng qua nang (Gach xay 216 ma M25 cCia Vigiacera ha Long cd kfch thudc 220x105x60 mm, khoi laong 1,75kg/vien - PV), tay kia van cam bay xuc vfla.
Trong khi dd c5c loai v3t li&u x§y khdng nung do kfch thi/dc 3 2 IWCHlVAuEuX^VDUHG
to (Gach AAC Vigiacera cd kfch thadc 500x200x100mm - PV), hay gach xi mang cdt lieu vien gach nang thi phai dat bay xudng, dung hai tay nang vien gach khl thi cdng, viec can chinh cung khd hon Dieu nay dan den tam ly e ngai cho ngiidi tho thi cdng tai cdng trinh.
Ben canh do, khi sCf dung gach dd chi can vCfa xay xi mang cat thdng thudng, nhang khi sCf dung cac loai vlt li^u xay khdng nung can nhCfng loai viia xay chuyen dyng. Day lai la mpt bai toan khien ngadi tieu dung can nh3c vi nhiing loai vOa x3y trat chuydn dung cd gia cao hon vija xSy trat thdng thudng.
Khl thi cdng tai cac cdng trinh dan sinh, gach 66 co nhieu loi the khi van chuyen trong ngd nhd va daa l^n cao.Trong khi do, cac loai v|t lieu xay khdng nung do phai van van chuyen bSng palet nen kfch thadc va trong laong Idn can cd nhQng phaang ti§n nang chuyen chuyen dung
Cung theo cac chuyen gia trong nganh vat lieu xay dang, ban than cac san pham gach khdng nung nhu AAC chat laong dam bao, tfnh au viet cung Idn, dieu nay da daac kiem nghiem bdi nhieu cdng trinh, tuy nhien, do tfnh dac thu can duoc b^o quan, thi cdng cung phcii dung quy each, dam bao cac yeu cau ky thuat mdi tranh daoc rinh trang ndt, gay. Thac te cho thay, nhilu cdng trinh bl sa cd nirt khdi xay la do chaa daac thi cdng dung cadi, ngadi tho chaa cd kien thifc chuyen mdn. Chinh vi vay, da lam nly sinh tam ly e ngai, than trong vdi san pham mdi. Do vay mS cac chu dau ta hay ngiidi tieu diJng van quay ve dung h^ng truyen thdng
ft/ldt yeu td nQa ve tam ly ngadi tieu dung, do la gach dat set nung xet ve sSn pham cd gia thanh re hon so vdi c^c sin pham gach xay khdng nung.
Mac du, theo tfnh toan cua cac chuyen gia, tfnh theo tong the cdng trinh cd t h i giam tdi 15% chi phi nguyen lieu Tuy nhien, ngadi sQ dung, dac biet la b nhdm cac cdng trinh dan sinh van cd
NGUOI TIEU DUNG C(
THOI QUEN TiNH GIJ' THANH THEO TUNG LOAI VAT LIEU DO Dl GACH DAT SET NUN RE HON GACH X A Y KHONG NUNG
thdi quen tfnh gia nguyen vat lieu tryc tiip qua san pham. Do do ma gach dd van duoc liia chon 64 giai quyit bai to^nvekinhte
Gach dat set nung b mdt gdc dp nao dd van daac danh gia la vat lieu truyen thdng cd gia tri, Theo y kien cua mdt sd doanh nghidp la thanh vi^n Hdi VLXDVN, can day nhanh viec loai bd tnet d l cac Id gach thu cdng tCrdd giam sd luong gach nung trong tong sd vat li^u xay. Xda bd cdng nghe lac hau chQ khdng phai la xda bd hoan toan sin pham truyin thdng. Can song song phat trien hai sin pham. nhang cd sa hai hda, dam cac yeu clu ve giQ dat rudng de dim bio an ninh laong thuc, bao ve mdi tradng, tilt kiem nhien lieu b5ng each tan dung ngudn nguyen lieu dat ddi, ap dung cdng nghe eao 64 gilm chi phi, tao ra sin pham chat laong cao, gil tri kinh t l cao •;•
TAPCHlVAlLlfJXAYDJNG I J 3
