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Properties of concrete
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TLDR
In this article, the authors present the following properties of concrete: Elasticity, Shrinkage and Creep, Durabilty of Concrete, Freezing and Thawing, and Chlorides.Abstract:
1. Portland Cement. 2. Cementitious Materials Of Different Types. 3. Properties Of Aggregate. 4. Fresh Concrete. 5. Admixtures. 6. Strength Of Concrete. 7. Further Aspects Of Hardened Concrete. 8. Temperature Effects In Concrete. 9. Elasticity, Shrinkage And Creep. 10. Durabilty Of Concrete. 11. Effects Of Freezing And Thawing And Of Chlorides. 12. Testing Of Hardened Concrete. 13. Concretes With Particular Properties. 14. Selection Of Concrete Mix Proportions (Mix Design). Appendices. Index.read more
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Influence of Amount of Recycled Coarse Aggregates and Production Process on Properties of Recycled Aggregate Concrete
TL;DR: In this paper, four different recycled aggregate concretes were produced; made with 0, 25, 50, 50 and 100% of recycled coarse aggregates, respectively, in order to achieve the same compressive strengths.
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Compressive behaviour of concrete at high strain rates
P. H. Bischoff,S. H. Perry +1 more
TL;DR: Experimental techniques commonly used for high strain-rate testing of concrete in compression, together with the methods used for measurement and recording of stress and strain, are critically assessed in the first part of this paper as discussed by the authors.
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Application of bacteria as self-healing agent for the development of sustainable concrete
TL;DR: In this article, a specific group of alkali-resistant spore-forming bacteria related to the genus Bacillus was selected for this purpose, and the bacterial spores directly added to the cement mixture remained viable for a period up to 4 months.
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The cohesive zone model: advantages, limitations and challenges
TL;DR: In this paper, a review of the cohesive process zone model, a general model which can deal with the nonlinear zone ahead of the crack tip, is presented, which is able to adequately predict the behaviour of uncracked structures, including those with blunt notches, and not only the response of bodies with cracks.
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Geopolymer concrete: A review of some recent developments
TL;DR: An overview of advances in geopolymers formed by the alkaline activation of aluminosilicates is presented along with opportunities for their use in building construction as mentioned in this paper, with respect to fresh and hardened states, interfacial transition zone between aggregate and geopolymer, bond with steel reinforcing bars and resistance to elevated temperature.