Development of novel ultra-high-performance lightweight concrete modified with dehydrated cement powder and aerogel
Source abstract
Abstract
Currently, researchers emphasize creating eco-friendly, ultra-high-performance lightweight concrete (UHPLC) due to the extensive cement demand of ultra-high-performance concrete. This study aimed to develop such UHPLC by incorporating dehydrated cement powder (DCP) and aerogel (AG) at varying levels (5-25%) alongside double-hooked end steel fibers (DHE-SFs). Objectives were to enhance strength, durability, density, and thermal/acoustic properties. Results revealed reduced flowability with higher DCP and AG content. 5%, 10%, and 15% DCP and AG improved compressive strength (17.3%) via better packing and bond formation. Density decreased up to 8.3% with more DCP and AG. Modified mixtures resisted sulfate attack and exhibited increased compressive strength retention. Shrinkage reduced to 958 µ with more DCP and AG, notably in M6-DCP25-AG25. Thermal stability improved with only 75.4% mass loss at 1000 °C, while thermal conductivity decreased to 0.274 W/m·°C. Sound absorption and pore volume increased in modified mixes. X-ray diffraction analysis showed higher crystalline phases with increased DCP and AG.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Innovative concrete reinforcement materials · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Architecture and Planning Department, Faculty of Engineering, King Khalid University (KKU), Abha, Saudi Arabia
Department of Civil Engineering, Swedish College of Engineering and Technology, Wah Cantt, Pakistan
Department of Technical Civil Engineering, Erbil Technical Engineering College, Erbil Polytechnic University, Erbil, Iraq
Department of Architecture and Planning, College of Engineering, King Khalid University, Abha, Saudi Arabia
Funding
Deanship of Scientific Research at King Khalid University
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