Journal ArticleDOI
Prevention of Thaumasite Formation in Concrete Exposed to Sulphate Attack
Frank Bellmann,Jochen Stark +1 more
TLDR
In this paper, it is suggested that the formation of thaumasite at low and moderate sulphate concentrations in the attacking solution can be avoided by lowering the calcium/silicon ratio in the C-S-H phases.About:
This article is published in Cement and Concrete Research.The article was published on 2007-08-01. It has received 52 citations till now. The article focuses on the topics: Thaumasite & Portlandite.read more
Citations
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Journal ArticleDOI
Sulfate attack on cementitious materials containing limestone filler — A review
TL;DR: In this paper, a conceptual graphical analysis is proposed to relate the degree of surface deterioration and mineralogical composition of attacked surface to the main variables of external sulfate attack: water/cementitious material ratio, limestone content and C 3 A content of the cement.
Journal ArticleDOI
Thermodynamic equilibrium calculations in cementitious systems
TL;DR: In this article, a review of the different applications of thermodynamic equilibrium calculations in cementitious systems is presented, which can help us to understand on a chemical level the consequences of different factors such as cement composition, hydration, leaching, or temperature on the composition and the properties of a hydrated cementitious system.
Journal ArticleDOI
A review on effects of limestone powder on the properties of concrete
TL;DR: In this paper, the workability, setting time, shrinkage, mechanical properties, and durability of concrete are discussed, which are mainly influenced by many factors, including the particle size and content of limestone powder.
Journal ArticleDOI
Influence of the Ca/Si ratio of the C–S–H phase on the interaction with sulfate ions and its impact on the ettringite crystallization pressure
TL;DR: In this article, the effect of the Ca/Si ratio of the calcium-silicate-hydrate (C-S-H) phase on the interaction with sulfate ions is investigated for C-S−H phases (Ca/Si = 0.83, 1.25, and 1.50) and mortar samples of blended Portland cements.
Journal ArticleDOI
Durability of shotcrete for underground support– Review and update
TL;DR: In this paper, the authors shed light on the durability of shotcrete by revising the literature, highlighting what is missing and needs to be addressed, assessing how the knowledge about concrete durability can be transferred to shotcrete, and providing recommendations for durable shotcrete structures.
References
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Book
Concrete: Microstructure, Properties, and Materials
P.K. Mehta,Paulo J.M. Monteiro +1 more
TL;DR: Concrete: Microstructure, Properties, and Materials as mentioned in this paper provides complete details on the microstructure-property relationship approach to provide scientific explanation for the strength and durability of concrete.
Book
Lea's chemistry of cement and concrete
P. C. Hewlett,F. M. Lea +1 more
TL;DR: The history of calcareous cements and Portland cements can be found in this paper, where the structure and cementing qualities of cement compounds the constitution of Portland cement, the burning of Portland Cement, the hydration of PortlandCement, resistance of concrete to natural destructive agencies physical and mechanical properties of Portland cement pozzolanas and pozzolanic cements cements made from blast furnace slag high alumina cement some special cements, and cement properties cement admixtures concrete aggregates.
Journal ArticleDOI
Does gypsum formation during sulfate attack on concrete lead to expansion
Bing Tian,Menashi D. Cohen +1 more
TL;DR: In this paper, an investigation carried out to study the gypsum formation during sulfate attack and its consequences was carried out, and the results suggested that the formation may cause expansion.
Journal ArticleDOI
Microstructural and microanalytical studies of sulfate attack. I. Ordinary portland cement paste
R.S. Gollop,H.F.W. Taylor +1 more
TL;DR: In this paper, a sample of Portland cement pastes that had been stored for 6 months in solutions of sodium or magnesium sulfate was examined by scanning electron microscopy using backscattered electron imaging and X-ray microanalysis.
Journal ArticleDOI
Effects of gypsum formation on the performance of cement mortars during external sulfate attack
TL;DR: In this paper, the authors evaluated the effect of gypsum formation on the performance of C 3 S mortars and Type I Portland cement (PC) mortars, and concluded that the expansion of the PC mortars occurred due to the combined effect of ettringite formation.