RT Journal Article
T1 Effects of sulfates on the hydration of Portland cement – A review
A1 Neto, José da Silva Andrade
A1 Kirchheim, Ana Paula
A1 Gómez-de-la-Torre, María de los  Ángeles
K1 Cemento Portland
K1 Cemento - Aditivos
AB Presented within is a critical overview of the effect of sulfates on cement hydration, properties, and optimumsulfate content in Portland cement. Calcium sulfate is used in Portland cement to control the C3Areaction to induce the optimum hydration of C3S to occur. The amount of calcium sulfate in thePortland cement influences the hydration, rheology, setting, phase assemblage, porosity distribution,and strength in cementitious materials. If added in excess, it can also lead to durability problems, thusa better understanding is needed about the mechanisms of sulfate on C3A and C3S hydration. The optimumsulfate content is well known as a key pathway to produce workable, good strength, and durableconcretes. Despite many years of research, questions regarding sulfate optimization remain. Furtherinvestigation on the influence of clinker and calcium sulfate characteristics, the use of different supplementarycementitious materials and chemical admixtures, and the curing conditions on the sulfatedemand of Portland cement are needed. The main methods used to determine the optimum SO3 contentare reported, and the advantages and disadvantages are examined. Finally, recommendation for futureresearch is also discussed.
YR 2021
FD 2021
LK https://hdl.handle.net/10630/21071
UL https://hdl.handle.net/10630/21071
LA eng
NO Construction and Building Materials 279 (2021) 122428
NO JSAN thanked the financial support of CAPES [88882.439908/2019-01]. The participation APK was sponsored by CNPq (BrazilianNational Council for Scientific and Technological Development)through the research fellowships PQ2017 305530/2017- 8. JSANalso thanked the Spanish Junta de Andalucía [UMA18-FEDERJA-095] research project for the research stage at University of Málaga(Spain).
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 20 ene 2026