Xov xwm

Dab tsi yog lwm yam ntxiv thiab cov khoom ntxiv uas siv hauv pob zeb?

Concrete yog ib yam khoom siv ua tsev uas tau siv dav tau ntau pua xyoo, and it's an essential part of our daily lives. Concrete siv tau los tsim tsev, bridges, txoj kev, walls, thiab lwm yam qauv. It's made from cement, a, u, thiab lwm yam khoom xyaw, thiab ntau yam ntxiv thiab addmixtures tuaj yeem ntxiv kom txhim kho nws cov yam ntxwv. Cov additives thiab admixtures no muaj xws li:
NYEEM NTXIV

yog pob zeb ntxiv

Concrete additives, hu ua fillers lossis modifiers, yog cov khoom siv uas ntxiv rau hauv concrete thaum nws tsim los txhim kho nws cov yam ntxwv thiab yam ntxwv. Cov khoom ntxiv no tuaj yeem siv los nce zog, txo kev tawg, txhim kho porosity, lossis txhim kho lwm yam yam ntxwv zoo.
NYEEM NTXIV

Puas muaj cua hauv pob zeb tsis muaj tshuaj ntxiv

Air is an essential element for all living organisms, and it is necessary for the survival of plants, animals, and humans. However, concrete is a material made from cement, a, and water that is often used as building materials. While most people know that concrete cannot exist without additives such as lime or chalkdust, there is a growing body of evidence suggesting that air can actually be present in concrete without these additives.
NYEEM NTXIV