... (0.20–0.30) and APAM dosage (0–1.5 wt% of the combined mass of magnesia and phosphate) on the workability (fluidity, setting time and bleeding rate), mechanical properties (compressive strength, flexural strength and tensile bond strength) and microstructural characteristics of MPCG were...

... heat tests reveal that the combined use of BOFS and sodium lactate significantly inhibits early hydration, leading to a more porous initial microstructure. This porosity facilitates the dissolution of slag during the later stages of hydration. Furthermore, the chelating properties of lactate ions...

... environments at 20°C and 60°C. The compressive strength evolution of CAC mortars was tracked over 56 days. The underlying mechanisms were elucidated by analysing the phase composition, microstructure, and pore structure of CAC paste specimens, complemented by monitoring the chemistry of the exposure...

... size and a densified microstructure. Incorporating carbonated recycled powder ( CRP ) into cement paste improved the compressive and flexural strengths as compared with the addition of non-carbonated RP, particularly at the 15% replacement level, where the strengths approached those of the plain cement...

...Vaishnav Kumar Shenbagam; Piyush Chaunsali Calcium sulfoaluminate belite ( CSAB ) cement is an alternative low carbon binder with ye’elimite, belite and calcium sulfate as the primary reactive phases. Ye’elimite hydrates rapidly to form ettringite, which contributes to a dense microstructure, rapid...

... Limited Licensed re-use rights only alkali-activated cements compressive strength material characterisation mechanical properties mechanisms microstructure UN SDG 13: Climate action Research Foundation of the Department of Natural Resources of Hunan Province 20230107DZ...

... and evolution of ASR products was explored. By incorporating varying amounts of calcium oxide, the characteristics of ASR products (composition and microstructure) in SSC under different calcium/silicon molar ratios (CSRs) were systematically examined, elucidating the influence of the CSR on ASR...

... analysis with Portland cement ( PC ) mortar. The setting times, compressive strengths and autogenous shrinkage of mortars were measured, and the hydration kinetics, phase assemblage and microstructural evolution were characterised. Key findings revealed distinct responses between the two systems...

... have appeared to influence the work reported in this paper. 05 10 2024 18 04 2025 © 2025 Emerald Publishing Limited 2025 Emerald Publishing Limited Licensed re-use rights only cement paste dual initiator microstructure polymerisation kinetics superplasticisers...

... and environmentally friendly way to use FGDG in order to reduce environmental pollution and create economic value from this waste product. dewatering industrial wastes microstructure recycling & reuse of materials strength & testing of materials © 2025 Emerald Publishing Limited 2025...

... phases is poorly known. Based on glow-discharge mass spectrometry and time-of-flight secondary ion mass spectrometry, the present paper shows for the first time the repartition of Li at the scale of a microstructure of clinker with a 200 nm lateral resolution. Li is correlated to both Al and Fe...

...Majid Rostami; Kourosh Nasrollahzadeh; Daia Zwicky The study presented here examined the durability and microstructural properties of one-part alkali-activated slag concrete (AASC) exposed to a nitric acid environment (pH = 1). The alkali activators employed included sodium metasilicate...

...) + aluminium oxide (Al₂O₃) + iron (III) oxide (Fe₂O₃) content of the pozzolan. Also, microstructural analysis through scanning electron microscopy reflected the presence of ettringite and Friedel’s salt from the scaled surface. Furthermore, except for compressive...

... of the mortar due to the filling effect on the microstructure. However, eggshell cement mortar has exhibited lower mechanical properties at all substitution levels and showed slow hydration behaviour (Her et al., 2022). Suitable sugar filter mud replacement rates have increased the alite...

...Beixing Li; Yucheng Yang; An Huang; Liang Huang; Yuxin Guo This research explores the effect of steam curing on the strength, durability and microstructure of concretes with and without mineral admixtures of fly ash (FA) and ground granulated blast-furnace slag powder (SL). Two types of C55...

...), the scanning angle was set at 10–80° and the scanning speed was 10°/min. cement stone compressive strength C-S-H high-ground-temperature environment microstructure In the planning and design of the Sichuan–Tibet railway, problems of high ground stress, high ground temperature and active...

... strength mechanisms microstructure sulfate-based cements UN SDG 13: Climate action The SSC pastes were prepared by adding urban tap water into cement powders with a water/binder mass ratio (w/b) of 0.40 and blending for 3 min in a cement paste mixer before transferring to a steel prism mould (40...

... products readily diffused. Conversely, at higher w/c ratios, these products accumulated close to the steel bars, resulting in a compact structure. 23 08 2023 19 12 2023 Emerald Publishing Limited: All rights reserved 2024 chloride in cement corrosion microstructure modified...

...-activated pastes made up of metakaolin, as a precursor, and two different activators (RHA-SS and a commercial sodium silicate). Microstructural features were evaluated through X-ray diffraction, scanning electron microscopy and thermogravimetry analyses. Optimal production was obtained for a grinding time...

... and microstructural modification of concrete in the presence of nanomaterials remains to be presented and extensive research is required for strategic modification of cementitious systems. This study focused on the precise monitoring of early-age hydration with the incorporation of nanoalumina (nAl) in tricalcium...