Kev tsim cov vaj tse ruaj khov thiab ua haujlwm siab ua haujlwm yog nyob ntawm kev xaiv cov khoom siv ntxiv, uas ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov khoom vaj khoom tsev. Cov additives, xws li ya tshauv, cenospheres, nthuav perlite, hollow iav microspheres, pob zeb fibers, thiab dej txo cov neeg ua hauj, yog revolutionizing kev lag luam kev tsim kho los ntawm kev txhim kho pob zeb sib tov thiab admixtures.