Ib txoj kev cov menyuam, tseem hu ua av compactor, yog ib hom kev tsim kho cov cuab yeej, muaj nyob rau hauv ob pawg loj: steel - log thiab log. Nyob rau hauv cov khoom siv dav dav ntawm kev tsim kho, txoj kev rollers poob rau hauv qeb ntawm cov cuab yeej siv txoj kev thiab tau siv dav hauv kev sib sau ua ke ntawm cov khoom loj hauv -scale engineering tej yaam num xws li kev loj, railways, tshav dav hlau runways, dams, thiab stadiums. Lawv tuaj yeem cog cov xuab zeb, semi-cohesive, thiab cohesive av, nrog rau cov av ruaj khov subgrade thiab asphalt qhob pavement txheej. Kev siv lub zog ntawm nws tus kheej qhov hnyav, txoj kev chais yog tsim rau ntau yam kev ua haujlwm compaction, ua rau deformation mus tas li thiab densification ntawm txheej compacted.
Txij li thaum ancient sij hawm, tib neeg siv cov hooves ntawm cov tsiaj nyeg los tsuj, knead, thiab compact av los kho lub hauv paus ntawm tsev thiab compact dams thiab ntug dej. Ua ntej nruab nrab - xyoo pua 19th, Western txoj kev engineering feem ntau siv gravel paving, thiab compaction yog ua tiav los ntawm lub ntuj rolling ntawm tsheb. Nws tsis yog txog thaum qhov kev tsim ntawm lub pob zeb cov menyuam hauv xyoo 1858 uas tau txhawb nqa txoj kev loj hlob ntawm gravel pavement, thiab kev siv cov nees-drawn rollers rau compaction maj mam tshwm sim. Qhov no yog qhov ntxov tshaj plaws qauv ntawm txoj kev cov menyuam. Xyoo 1860, lub tshuab nqus tsev vacuum tau tshwm sim hauv Fab Kis, uas tau txhawb nqa thiab txhim kho kev tsim kho tshuab thiab kev ua haujlwm zoo ntawm pob zeb pavement thiab ua kom muaj kev vam meej.
