Measurement of mechanical strength of aggregates by rod penetration method
棒貫入試験法による凝集体強度の測定

Niichi Hayashi, Masashi Iwata, Susumu Umemura, Toshiro Murase, Mompei Shirato
1986 Kagaku kogaku rombunshu  
doi:10.1252/kakoronbunshu.12.294 fatcat:tu4vkpm3zzdj7jnzr3xx5gmqsa