Geopolymerization in concrete production is a sustainable approach that utilizes industrial
waste materials in conjunction with alkaline activators, such as sodium hydroxide and …

Workable, environmentally friendly, sustainable sand concrete was reviewed to replace river
sand for concrete production. The river ecology and the biological balance will be preserved …

This paper analyzes and discusses in depth the development of hydration of ternary cement
pastes with silica fume (8%) and nano-silica (3%), with water/binder (w/b) ratios of 0.4 and …

In 2021, the price of silica fume had fallen to 400 RMB/ton in some areas, while that of
cement had risen to 650 RMB/ton, which provided a realistic basis for applying silica fume in …

Seepage has become the dominant damage that affected tunnel stability. Although drainage
and the waterproofing system are frequently employed in seepage tunnels, the poor …

The pozzolanic activity of colloidal nano-silica (CNS) can promote cement hydration, thereby
improving the performance of the cement-based materials. However, the CNS itself presents …

This study investigated the effects of nano-silica (NS) and silica fume (SF) on the hydration
reaction of high-volume fly ash cement (HVFC) composites. In order to solve the …

The excessive mining of high-quality river sand for cement sand mortar resulted in
environmental impacts and ecological imbalances. The present study aims to produce …

This study investigates the feasibility of applying nano-SiO 2 (NS) as interfacial bonding
agents to realize robust bonds between normal-strength concrete and high-strength repair …

Although calcined clay-blended cement offers higher performance and durability compared
to neat Portland cement (PC), its extensive use of natural clay leads to the depletion of …