... of RPGC under different curing conditions (50% relative humidity (RH), 80% RH and immersion in lime-saturated water) at a constant temperature of 23±2°C. Two groups of RPGC mixes with distinct precursors were prepared. Each group contained mixes with three different liquid ratios, representing the ratio...

...Jyotish Kumar Das; Jnyanendra Kumar Prusty; Sahil Bansal The impacts of silica fume (SF) type, mixing sequence, and mixing time on the workability and compressive strength of ultra-high-performance concrete (UHPC) were examined. The effects of demolding time and curing regimes on the compressive...

...Ngoc Thanh Tran; Duy Hung Nguyen; Quang Thanh Tran; Huy Viet Le; Duy-Liem Nguyen In this study, the aim is to investigate and predict the compressive strength of geopolymer concrete (GPC). The effects of curing method, curing time and concrete age on the compressive strength of GPC were evaluated...

... and electrically cures it by passing an alternating current (AC) at a temperature of −10°C. During testing, a temperature probe monitors the real-time changes in the internal temperature of the mortar under different energisation parameters. The strength of the mortar energised for 1 day is analysed under...

... to investigate influential parameters in the models and their precision in prediction. 30 08 2022 05 05 2023 Emerald Publishing Limited: All rights reserved 2023 admixtures carbonation cementitious materials coating curing environmental condition Cement-based materials...

...Tesfaalem Gereziher Atsbha; Semion Zhutovsky Autogenous curing, also known as internal curing (IC), has revolutionised the way high-performance concrete (HPC) and high-strength concrete (HSC) are cured. IC improves the service life of concrete by lowering early-age cracking and enhancing durability...

...Lingling Li; Junping Shi; Jialiang Kou; Zijian Yan In this study, the uniaxial compression and splitting tensile properties of high-ductility concrete (HDC) at different temperatures were investigated. The uniaxial compression strength and splitting tensile strength of HDC under standard curing (20...

... the full curing period using smart piezoelectric modules (SPMs). The proposed method overcomes shortcomings of traditional methods and can be used for non-destructive, real-time, continuous, in situ monitoring of concrete strength during the whole curing period. A series of experiments demonstrates...

... especially at 1 d. The degree of hydration (DOH) of cement is mainly determined by the effective water/cement ratio of the paste, and the incorporation of fly ash, while initially producing little reaction, results in a higher DOH of cement. With steam curing, the content of CH significantly decreases...

...Xiancui Yan; Linhua Jiang; Zijian Song; Yunjie Chen The pore structure is of great concern to the mechanical properties and durability of concrete. This paper investigated the pore structures of slag-blended cement paste under steam curing using two non-destructive testing (NDT) tools...

... mix compositions were synthesised using fly ash, waste ground glass powder and calcium hydroxide. These mixtures were subjected to accelerated aging by thermal curing (at a temperature of 80°C), the treatment lasting for 56 d. Crystalline zeolitic phases were detected by Fourier transform infrared...

...Jun Zhang; Xiaoping Ding; Qing Wang; Xuan Zheng In this study, calcined zeolite particles with average size of 0·18 mm were used as an internal curing agent for high-strength concrete. The purpose of the study was to explore the mixture design of high-strength concrete with the addition...

...Xiancui Yan; Linhua Jiang; Ning Xu; Zijian Song; Yunjie Chen Compressive fatigue generally causes permanent internal damage to concrete structures. This paper presents an experimental study to evaluate the influences of steam curing and slag replacement on the compressive fatigue performance...

... silicate for dosages less than 10 wt%. Higher heat curing temperatures and the use of larger dosages of alkali activators resulted in higher early-age compressive cube strength values. The X-ray diffraction analysis of 7 and 28 d old pastes activated with sodium carbonates revealed formation of gaylussite...

... deformation capacity available in the structure can ensure safety and is achieved by dissipating excessive energy through plastic hinges. Compaction and curing are most important to achieve requisite strength and durability properties and this is achieved through self-curing self-compacting concretes...

...Olusola Idowu; Leon Black Good curing, enabling prolonged hydration and the formation of a well-developed microstructure, is imperative if concrete is to perform at its full potential. This may become more important with the increasing use of composite cements containing more slowly reacting...

...Hossam S. Al-alaily; Assem A. A. Hassan The aim of this investigation was to study the corrosion activity in reinforced concrete exposed to different curing temperatures and durations using a wet–dry cycle corrosion test. Reinforced concrete samples were also tested under an impressed current...

...Souradeep Gupta Curing of cementitious composites is critical to development of strength and impermeability. However, sufficient and complete curing cannot be achieved in many practical construction cases due to the complexity of construction and limited accessibility. Supplying moisture internally...

... ICE Publishing: All rights reserved 2017 cement/cementitious materials curing durability-related properties Concrete exhibiting high performance and high durability has been developed over recent decades and is now used frequently in the construction of mass infrastructure (Lee et...

... of curing. The composites are cured either under normal atmospheric conditions (standard curing) or in a carbon dioxide chamber (accelerated carbonation curing). The carbon dioxide capture experiments are performed under constant conditions (10% carbon dioxide, 20°C and 60% relative humidity) and results...