Preparation of belite–sulphoaluminate cement using phosphate rock acid-insoluble residue

He, Weilong; Zhang, Jing; Wang, Yu; Yu, Zhishui; Nie, Dengpan

doi:10.1016/j.conbuildmat.2022.126573

Cited by 12 publications

(2 citation statements)

References 31 publications

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“…The BCSA has a higher content of C 2 S and lower content of C 4 A 3 $. The BCSA is usually subjected to chemical doping during the calcination process (including B 2 O 3 , Na 2 O, K 2 O, BaO, MnO 2 , and Cr 2 O 3 ) [23,24], which aims to produce lattice distortion of β-C 2 S and activate it to become α-C 2 S and α'-C 2 S with relatively higher hydration activity [25,26]. The hydration rate of α-C 2 S and α'-C 2 S is faster than other crystalline C 2 S, contributing to a higher degree of hydration.…”

Section: Introductionmentioning

confidence: 99%

Study on the Properties of Belite Calcium Sulfoaluminate Cement–Ordinary Portland Cement Composite Cementitious System

Xin,

Duan,

Zhu

et al. 2024

Buildings

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Due to low early strength and high shrinkage, ordinary Portland cement (OPC) has difficulty meeting the actual needs of modern construction projects, while belite calcium sulfoaluminate cement (BCSA–OPC) composite cement provides a new solution. The mechanical and the drying shrinkage properties of the BCSA–OPC mortar were determined, the hydration heat of the BCSA–OPC was studied, and the pore size distribution of the mortar was investigated. In addition, the hydration products of the BCSA–OPC were analyzed by X-ray diffraction (XRD) and simultaneous thermal analysis (TG-DSC), and the microscopic morphology of the BCSA–OPC mortar was observed by scanning electron microscopy (SEM). The results show that with the increase in BCSA dosage in the BCSA–OPC, compared with OPC, the flexural strengths of the mortar of 50% dosage of BCSA at the hydration age of 1 d, 3 d, 7 d, and 28 d are improved by 33.3%, 36.6%, 23.6%, and 26.8%, and the compressive strengths are improved by 50.8%, 35.7%, 13.4%, and 27.7%. The drying shrinkage and total porosity of the mortar at the hydration age of 28 d are reduced by 117.4% and 21.55%, respectively. It is attributed to the filling effect of a large amount of ettringite (AFt) and intertwined with the fibrous C-S-H gel to form a network. This study will provide a theoretical basis for the application of the BCSA–OPC engineering.

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Section: Introductionmentioning

confidence: 99%

Study on the Properties of Belite Calcium Sulfoaluminate Cement–Ordinary Portland Cement Composite Cementitious System

Xin,

Duan,

Zhu

et al. 2024

Buildings

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“…Mine and quarry waste such as stockpiles of sub-ore, marginal ore, waste rock or tailings are typically rich in oxides of silicon, aluminium, calcium, and iron [22] which are also the main constituents of BCSA clinker and cement. There is a substantial sample of papers that have examined the possibilities to use phosphate rocks [23], Pb-Zn ore tailings [24], aluminium tailings, and aluminium ore waste rock [25], but little information on the utilization of limestone quarry waste for synthesis low CO 2 cements, especially BCSA. This research aimed to examine the potential of incorporating selected mine and quarry waste into cement clinker raw mixtures as secondary raw materials (SRM) to produce sustainable belite-sulfoaluminate cement (BCSA).…”

Section: Introductionmentioning

confidence: 99%

The Valorisation of Selected Quarry and Mine Waste for Sustainable Cement Production within the Concept of Circular Economy

et al. 2022

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The cement industry could potentially consume large amounts of solid industrial waste in order to improve its sustainability. The suitability of selected quarry and mine waste as secondary raw materials (SRM) was examined for the sustainable production of cement following the concept of a circular economy. The chemical, mineralogical, and radiological characterization of SRM was conducted in this study. Its potential use in low-carbon and low-energy belite-sulfoaluminate cement was investigated by incorporating the examined SRM into cement clinker. Various characterization methods were used to characterize the cement, including X-ray powder diffraction (XRD), thermal analysis (DTA/TG), and isothermal calorimetry. Depending on the chemical composition of the waste, lower or higher amounts were allowed to be incorporated into the raw clinker mixture for a targeted clinker phase composition. Among the samples, differences were observed in the phase composition of synthesized clinkers, which slightly influenced the reactivity of the cement but did not significantly change the compressive strength of the final product.

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Preparation of building ceramic bricks using waste residue obtained by mutual treatment of electrolytic manganese residue and red mud

Zhang

Nie

2023

Ceramics International

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Preparation of belite–sulphoaluminate cement using phosphate rock acid-insoluble residue

Cited by 12 publications

References 31 publications

Study on the Properties of Belite Calcium Sulfoaluminate Cement–Ordinary Portland Cement Composite Cementitious System

Study on the Properties of Belite Calcium Sulfoaluminate Cement–Ordinary Portland Cement Composite Cementitious System

The Valorisation of Selected Quarry and Mine Waste for Sustainable Cement Production within the Concept of Circular Economy

Preparation of building ceramic bricks using waste residue obtained by mutual treatment of electrolytic manganese residue and red mud

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