Choj Paving, Maas txij nkawm, lub luag haujlwm tseem ceeb ntawm chav tsim hluav taws xob

Txawm hais tias peb tab tom tsim txoj kev lossis tsev tsim tsev, cement yog cov khoom siv tseem ceeb. Qhov ntsuas kub thiab vaum ntawm cov khoom noj xis mas yog qhov tsim nyog cov neeg uas cuam tshuam rau lub zog ntawm cov qauv ua ke. Ntawm chav kawm, nws tsis yog cov no, tseem muaj cov cusent vuas, cov ntoo kuab xis, thiab lwm yam ntxiv tom qab ntxiv cov cement slurry, uas tuaj yeem ua tiav. Raws li lub sijhawm dhau los, cov xis mas thiaj ua rau muaj cov khoom, cov txheej txheem yog cuam tshuam nrog cov sorllex thiab ntau yam kev kawm kom meej.

Nyob rau hauv cov txheej txheem ntawm kev sib xyaw, ncuav, sib txuas thiab kev sib sau ua ke, muaj cov cai nruj me me. Yog tias lub tshuab hluav taws xob chav tsim hluav taws xob yog siv los kho, qhov ntsuas kub tuaj yeem tswj tau zoo thiab thaum kawg moulding zoo ntawm cov cement muaj peev xwm tswj tau.

Thaum ua nrog Maas, yog tias ib lub ncu hluav taws xob yog siv, nws yuav muaj qee yam cuam tshuam rau cov qauv kev hloov kho ntawm cov khoom noj khoom haus kom xis. Tom qab peb hliv cov cement, cov xis mas raug rau saum huab cua thiab qee zaum tau tshwm sim rau lub suab scorching. Cov dej yaj sai thiab nws yog qhov nyuaj rau kev rov ua cov dej. Nws yuav ua kom qhuav heev, ua rau cov cement rau hydrate thiab kuj tseem yuav siv tau ncaj qha. Seem, ua kom nkim thiab ua haujlwm cuam tshuam.

Tau kawg, ntxiv rau kev haus dej, nws txhais tau tias tawv. Thaum siv cov cement, piv txwv li, kev ua kom tawv nqaij tawv ntawm tus qauv tsim tsev kuj yuav tsum tau kho lub sijhawm tom qab molding. Nyob rau lub sijhawm no, yog tias koj siv cov roj hluav taws xob, koj tuaj yeem ua kom cov av noo ntawm cov xis mas. Maas ntawm ntau qhov chaw kub sib txawv yuav cuam tshuam cov tshuaj tiv thaiv kab mob ntawm kev ua pa cawv. Thaum qhov kub nce, cov tshuaj tiv thaiv tus nqi yuav nrawm thiab lub zog hws yuav ua kom nrawm. Yog tias qhov ntsuas kub tsawg dhau, tus nqi tshuaj tiv thaiv qeeb thiab lub zog yuav qeeb raws li. Yog li ntawd, thaum peb tsim kev tsim, feem ntau ntawm cov chav tsim hluav taws xob tau tswj hwm raws li cov tshuaj tiv thaiv huab cua thiab cov khoom ua kom muaj kev cuam tshuam rau cov cement cov khoom. Qhov ceev thiab qeeb ntawm cov txheej txheem ntawm cov khoom ntawm cov khoom.

Thaum cov khoom siv CIAs yog tswj xyuas siv peb cov chav tsim hluav taws xob, lawv tuaj yeem hloov kho raws li cov neeg siv khoom. Lub siab yog ruaj khov thiab tuaj yeem ua tau raws li cov kev xav tau ntawm ntau qhov chaw ntau lawm thiab huab cua. Lub zog kuj tseem tuaj yeem hloov kho hauv ntau lub zog. Thaum tus nqi ntawm cov cement yog qhov sib txawv, qhov ntau ntawm cov chav yuav tsum muaj kuj txawv, uas tuaj yeem ua tau zoo dua txuag lub zog thiab tiv thaiv ib puag ncig.

Yog li ntawd, thaum siv chav hluav taws xob chav hluav taws xob, nws muaj qhov zoo ntawm kev ua haujlwm siab thiab txuag hluav taws xob. Nws yog qhov yooj yim dua thiab lub zog-txuag los xaiv lub tshuab hluav taws xob ua kom muaj cov khoom lag luam hloov khoom. Lub tshuab hluav taws xob chav yog qhov kub-thiab cov khoom siv tu siab. Lub siab-siab thiab kub-kub tsim tuaj yeem ntxuav thiab cov khoom siv tshuaj tua kab mob hauv kev kho mob, thiab tuaj yeem siv rau cov tshuaj txhuam tshuaj. Nws ua haujlwm ntau yam kev lag luam, xws li kev lag luam biochemical, kev lag luam, kev tshawb fawb ua lag luam, kev sim tshuaj, kev lag luam siab, thiab lwm yam.