Txoj kev ntsuas raws li lub teeb compaction yog them rau hauv IS: 2720 (Part 7)-1'~ 80. Qhov kev hloov kho no yog npaj los npog cov xwm txheej no thaum cov av tuaj yeem raug cuam tshuam rau kev sib tsoo ~ thaum lub sij hawm compaction.
Is Code 2720 Standard Proctor test?
STANDARD • IS: 2720 (Part 8) 1983. OBJECTIVE • Kev txiav txim siab txog cov dej uas yuav tsum tau siv thaum cog cov av hauv thaj teb thiab qhov txiaj ntsig ntawm density, uas yuav tsum tau los ntawm compaction ntawm optimum ya raws.
txhais li cas kom muaj 95% compaction?
95% compaction txhais tau hais tias cov av ntawm qhov chaw tsim kho tau compacted rau 95 % ntawm qhov siab tshaj plaws ua tiav hauv chav kuaj. … Nws txhais tau hais tias thaum koj ua qhov kev ntsuam xyuas compaction (hauv chav kuaj) ntawm ib qho av me me ntawm ib qhov chaw. Koj tau txais qee tus nqi ntawm qhov siab tshaj plaws qhuav qhov hnyav ntawm qee cov dej noo.
Cov av compaction yog dab tsi?
Piv txwv li, cov lus qhia tshwj xeeb feem ntau xav tau kev cog lus kom yog 95 feem pua ntawm Standard Proctor. Qhov no txhais tau hais tias cov av ntom ntom ntawm qhov chaw yuav tsum sib npaug li 95% ntawm qhov siab tshaj plaws ua tiav compaction. Compaction yog ua tiav los ntawm kev siv peb hom kev quab yuam rau cov av loj. cov av particles.
ASTM D1557 yog dab tsi?
ASTM D1557-00, Txoj Kev Ntsuas Kev Ntsuas rau Kev Ntsuas Ntsuas Cov yam ntxwv ntawm Cov Av Siv Kev Hloov Kho (56, 000 ft-lbf / ft 3 (2,700kN-m/m3), ASTM International, West Conshohocken, PA, 2000, www.astm.org.
