Study on the correlation between the compressive strength of hardened cement paste and the physical properties of drilling powder

摘要

A fundamental study was conducted to develop a method for estimating the compressive strength of concrete with minimal damage. This study focused on the strength development of hardened cement to determine whether the strength of the cement paste could be estimated from the properties of the drilling powder. The helium true density, particle size distribution, and pore volume of drilling powder samples collected from the specimens were measured and compared with the compressive strengths of the specimens. It was determined that the information that governs the compressive strength of the hardened cement remained in the pore structure of the drilling powder. (C) 2020 Elsevier Ltd. All rights reserved.