CONG NGHE SfiN XUflT G@CH KHONG<br />
NUNG TCr O^T V^ PHE TH^I CONG NGHIEP<br />
Lu'dng Vii Thang<br />
<br />
<br />
<br />
M<br />
ot so vdn de xung quanh gach xdy khae ty le gach nung thii cdng lai chiem tdi 70%<br />
sdn xuat theo cdng nghe nung: - 100% tuy theo tifng dia phufdng.<br />
Gach xay la rapt bd phan cau Nguyen nhdn tgi sao d nudc ta sii dung gach<br />
thanh quan trpng ciia ngdi nha hoac 01 cdng khong nung it nhu vay?<br />
trinh kien tnic dan sU. Mot nara, vdi sif phat trien Quan diem gach nung de xay tudng nha da<br />
manh me ciia nganh xay difng, ca nufde ta tieu cd tif ngan ddi, viec loai bd nd ra khdi ddi sdng<br />
thu ti? 20 - 22 (ty vien), neu ci? vdi da phat trien nhan dan la rapt van dl xa hdi rat khd khan.<br />
nay, den nam 2020 lufdng gach can cho xay dUng<br />
Cac day chuyin gach khdng nung dUa vao<br />
la hdn 40 ty vien, rapt sd lUdng khdng id, de dat<br />
nu'dc ta phan ldn la thiet bi qua dat, cdng nghe<br />
du'dc mi?c nay, lupng dat set phai tieu thu vao<br />
qua phiic tap, lam cho gia thanh vien gach khdng<br />
khoang 600 trieu m^ da't set tUdng dUdng vdi<br />
nung trd thanh mdt loai hang "xa xi" trong nhan<br />
30.000ha da't canh tac (binh quan mdi nam mat<br />
dan va nhU vay gach nung vin thang the.<br />
2500ha da't canh tac). Rieng nam 2020 mat<br />
Dilu quan trpng nha't la chUa cd cdng nghe<br />
3150ha da't. Khdng nhifng vay, gach nung cdn<br />
san xuat gach khdng nung tif nhiing vat lieu ddn<br />
tieu td'n rat nhilu nang lUdng: Than, ciii, dae biet<br />
gian, re tiln, it anh hu'dng den dat canh tac ma<br />
la than da, qua trinh nay thai vao bau khi quyen<br />
cdn lam sach radi tru'dng khdi cac loai phe lieu<br />
ciia chiing ta cd man la khi ddc khdng chi anh<br />
xay dufng ciing thie't bi day chuyin san xua't vdi<br />
hu'dng tdi mdi tru'dng siic khoe ciia con ngifdi ma<br />
nang sua't cao, nhUng gia thanh hdp ly cho ra san<br />
cdn lam giam tdi nang sua't ciia cay trdng, vat<br />
pham nhilu, re phii hdp vdi nIn kinh te ciia ta<br />
nudi. Vdi nhiing van dl tren, gach nung dang<br />
hien nay.<br />
dan la mdt diem yeu vl cdng nghe quan trpng<br />
trong cdng nghiep xay dUng d nu'dc ta va rat can Cong nghe sdn xuat gach khong nung bang<br />
du'dc quan tam. phuong phdp Polyme hoa khodng (Ddt hoa da)<br />
Cac nha khoa hpc d Vien Nghien ciiu hd trd<br />
Chinh vi vay, theo quy hoach tdng the phat trien ndng thdn hdp tac vdi Vien Dia ly Tai<br />
nganh cdng nghiep vat lieu xay difng den 2010 nguyen Thanh Phd Hd Chi Minh nghien cuXi va<br />
va dinh hUdng den 2020 da du'dc Thii tudng ling dung thanh cdng cdng nghe san xuat gach<br />
Chinh phii phe duyet ngay 01/08/2001, phai khdng nung tif dat va cac phe lieu cdng nghiep,<br />
phat trien gach khdng nung thay the gach da't xay dufng, khai khoang bang phUdng phap poly-<br />
nung ti? 10% - 15% vao nam 2005 va 25% - 30% me hda.<br />
vao nam 2010, xoa bd hoan toan gach da't nung<br />
Gach khong nung la gi ?<br />
thii cdng vao nam 2010.<br />
Gach khdng nung la loai gach xay sau khi<br />
Gach khdng nung dd duoc sit dung d nudc ta<br />
dufdc tao hinh thi tU ddng ran dat cac chi sd vl cd<br />
nhu the ndo?<br />
hpc: Cufdng dp nen, ud'n, dp hiit nifdc... ma<br />
Ty le sii dung gach khdng nung rat thai'p, khdng can qua nhiet dp. Cd nhilu loai gach<br />
den thdi diem nay ty le gach khdng nung mdi khdng nung hien nay dang sii dung nhU: Gach<br />
chiem 4% - 5% san lu'dng gach toan qud'c. Mat papanh: Gach khdng nung dUdc san xua't tif phe<br />
<br />
www.bacgiang.gov.vn/sldicn KH O A C6NG^<br />
HQC<br />
NGHE<br />
So 05/2010<br />
KHOfI HOC & DOFI SONG<br />
<br />
<br />
<br />
<br />
Cac eong<br />
trinh su"<br />
dung gach<br />
khong nung<br />
da trd len<br />
phd bie'n<br />
hdn<br />
<br />
thai cdng nghiep: Xi than, vdi bdt du'dc sii" dung - May mdc thiet bi day chuyin ti? san xua't<br />
lau ddi d nu'dc ta. Gach cd cUdng dp thap ti? 30- che^ tao du'dc ca trong va ngoai nufde.<br />
50kg/cra2 chu yeu diing cho cac loai tifdng it - Xay difng nha may d khap mpi dia hinh tif<br />
chiu life. Gach Block: Gach dUdc hinh thanh ti? hai dao tdi dinh mil eao.<br />
da vun, cat, xi raang cd cifdng dp chiu li?c cao cd<br />
- Phu gia vat tif san cd tren thi trufdng.<br />
the xay nha cao tang. NhUdc diera ciia loai gach<br />
nay la nang, to, khd xay, chufa dufdc thi trifdng - San xua't tif thii edng tdi tif ddng hda<br />
chap nhan rdng rai. Gach xi mang - cat: Gach hoan toan.<br />
dUdc tao thanh ti? cat va xi raang: Gach khdng - Chat lUdng vien gach tieu chuan tdt.<br />
nung tl? nhien: Ti? cac bien the va san phara - Gia thanh ha hdn so vdi gach nung.<br />
phong hda ciia da bazan. Loai gach nay chii yeu<br />
Tdra lai, day la mdt cdng nghe xanh difdc<br />
sii dung d cac viing cd ngudn puzolan tU nhien,<br />
hinh thiic san xuat tU phat, raang tinh chat dia ap dung trong ITnh vifc san xua't vat lieu xay<br />
phUdng, quy rad nhd... dufng tai Viet Nam thdi ky hdi nhap. Tan dung<br />
ngudn da't it ed gia tri kinh te nhif dat ddi (cac<br />
Nhif vay, gach khdng nung hien nay cd<br />
loai) tai cac vung trung du va miin niii, cac loai<br />
nhieu chiing loai, nhifng vin chu'a du'a vao thifc<br />
da't set ven sdng, da't tai tif cae cdng trinh dao<br />
te mdt each rdng rai do cac nguyen nhan da difa<br />
d phan tren. mdng nha, ham Id, ao hd, cac loai dat, da tai cac<br />
cdng trufdng khai thae quang... Tan dung cac<br />
De san xua't gach khdng nung tif da't. Theo<br />
cdng nghe "dat hda da" ngudn da't de san xuat ngudn phe thai ran nhif vat lieu xay difng be<br />
gach chie^m 50-70% phan nguyen lieu, suf dung tdng, gach vd cat, da sdi, xi Id, eac ba thai<br />
da dang cac loai da't ti? miin niii, ddng bang, quang bd xit... be tdng hda cac rac d nhilm.<br />
trung du Va cac vung hai dao... ddng thdi tan Thu hiit du'dc lao ddng dif thi?a tai cac dia<br />
dung du'dc cac ngudn phe thai xay dufng va cdng phifdng, giam chi phi van chuyen, tie^t kiem<br />
nghiep gdp phan cai thien mdi tnfdng xanh, nhien lieu, han che nung dd't, giam khi thai CO2,<br />
sach, dep. dau tu bin viing, san xua't dn dinh, phat trien<br />
De cd mdt cdng nghe san xua't gach khdng lau dai, ldi nhuan tu" 50-80%, tan dung dufdc phe<br />
nung dat dUdc cac tieu chi: lieu xay difng, bao ve mdi trUdng, giam gia<br />
- Nguyen lieu dau vao thuan ldi khdng ken thanh xay difng, khdng phu thudc bdi ngudn<br />
chon nhilu vd tan. nguyen vat lieu./.<br />
<br />
<br />
S0O5/2OIO<br />
K H^O A . H Q C<br />
cdNGisrGH:^ www.bacgiang.gov. vn/skiw^<br />
Thêm vào BST
Báo xấu
Download
Vui lòng tải xuống để xem tài liệu đầy đủ
