Tarmac (luv luv rau tarmacadam) yog cov khoom siv ntawm txoj kev patented hauv 1901 hauv UK. Nws yog kev txhim kho ntawm qhov chaw tsim nyob rau xyoo 1820 los ntawm John Loudon McAdam. Nws yog qhov tseem ceeb crushed pob zeb tov nrog cement ces kaw nrog tar.
tarmac yog dab tsi?
Tarmac yog lub npe generic muab rau txoj kev surfacing cov ntaub ntawv, uas yog tsim los ntawm tar-zoo li cov ntaub ntawv tov nrog ntxhia aggregates xws li Portland cement, xuab zeb, gravel los yog pob zeb. Txawm li cas los xij, lo lus 'tar' yog siv los piav txog ntau yam khoom sib txawv uas tsis yog tar.
tar rau txoj kev tuaj qhov twg?
Zaj dab neeg ntawm asph alt pib ntau txhiab xyoo ua ntej tsim lub tebchaws United States. Asph alt tshwm sim nyob rau hauv ob lub pas dej asph alt thiab hauv pob zeb asph alt(ib qho sib xyaw ntawm xuab zeb, limestone thiab asph alt).
Puas yog asph alt thiab tarmac tib yam?
Tarmac, luv luv rau tarmacadam, yog tsim thaum ib txheej ntawm cov pob zeb crushed los yog aggregate yog coated thiab tov nrog tar. … Thaum asph alt yog ib qho zoo sib xws rau tarmac, nws yeej muaj cov khoom siv sab nraud tsawg dua, ua rau nws hnav me ntsis. Ob qho tib si asph alt thiab tarmac yog siv rau kev tsav tsheb, pavement thiab txoj kev nto.
Puas yog tarmac pheej yig dua li pob zeb?
Puas yog tarmac pheej yig dua li pob zeb? Tus nqi pib nteg Tarmac yog pheej yig dua li pob zeb. … Pob zeb yog qhov ruaj khov heev thiab tuaj yeem kav ntev li 40 txog 50xyoo. Sib piv qhov no nrog Tarmac uas muaj lub neej ib txwm muaj li ntawm 25 xyoo thiab koj tuaj yeem pom tias pob zeb yuav raug nqi tsawg dua.
