Journal ArticleDOI
Investigations on the relationship between porosity, structure and strength of hydrated Portland cement pastes. II. Effect of pore structure and of degree of hydration
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In this article, the main factor influencing the strength properties of the obtained samples was found to be their porosity, however pores with radii of less than 10 nm affected the resultant strength only negligibly.About:
This article is published in Cement and Concrete Research.The article was published on 1985-05-01. It has received 321 citations till now. The article focuses on the topics: Portland cement & Cement.read more
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Structure and properties of aerated concrete: a review
N. Narayanan,K. Ramamurthy +1 more
TL;DR: Aerated concrete is relatively homogeneous when compared to normal concrete, as it does not contain coarse aggregate phase, yet shows vast variation in its properties as mentioned in this paper, which depend on its microstructure (void-paste system) and composition, which are influenced by the type of binder used, methods of pore-formation and curing.
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A review on ultra high performance concrete: Part I. Raw materials and mixture design
TL;DR: In this article, the theoretical principles, raw materials, mixture design methods, and preparation techniques for UHPC are reviewed, including reduction in porosity, improvement in microstructure, enhancement in homogeneity, and increase in toughness.
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Porosity, pore size distribution and in situ strength of concrete
TL;DR: In this paper, the in situ strength of concrete was determined through compression test of cores drilled out from laboratory cast beams, and the apparent porosity and pore size distribution of the same concrete were determined through mercury intrusion porosimetry, performed on small-drilled cores.
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Properties and applications of foamed concrete; a review
TL;DR: Foamed concrete possesses characteristics such as high strength-to-weight ratio and low density as discussed by the authors, which reduces dead loads on the structure and foundation, contributes to energy conservation, and lowers the labor cost during construction.
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Influence of porosity on compressive and tensile strength of cement mortar
TL;DR: In this paper, the porosity-dependent relationship between compressive strength and splitting tensile strength of cement mortar has been evaluated and interpreted in terms of its porosity, and the authors first reviewed the existing porosity strength relationships (Ryshkewithch, Schiller, Balshin and Hasselman model) and assessed the suitability of existing relationships.
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Journal ArticleDOI
Investigations on the relationship between porosity, structure and strength of hydrated portland cement pastes I. Effect of porosity
M. Röβler,I. Odler +1 more
TL;DR: In a series of cement paste specimens made with different water-cement ratios and hydrated for different times, the relationship between porosity and strength was determined in this article for a range of porosities between 5 and 28 per cent.
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Structural Properties of Calcium Silicate Pastes: I, Effect of the Hydrating Compound
TL;DR: In this article, the chemical and physical properties of C3S, β-C2S, a C 3S/C 2S blend, and portland cement pastes cured at 25°C were investigated.
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Influence of Temperature Increases During the Induction Period of C3S Hydration on the Microstructure and Strength of C3S Mortars
J. P. Boyer,R.L. Berger +1 more
TL;DR: In this article, the change in size and distribution of Ca(OH)2 crystals in C3S pastes had no apparent influence on strength when all strength was considered as a function of gel-space ratio.