Discuss the role of aggregate-cement paste interface in concrete. How does it influence the overall performance of concrete?
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Discuss the role of aggregate-cement paste interface in concrete. How does it influence the overall performance of concrete?
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- 6. Discuss the different types of volume change in concrete at early and long-term ages.what are the effects of aggregates in the performance of concrete?Chapter 13 Question: What is the elasticity of concrete for a normal weight mix (unit weight equal to 150 pcf) with a compressive strength of 5,000 psi? O 3.644 ksi O 4.074 ksi 4,287 ksi O 3.976 ksi O 3,834 ksi
- what is the value of gel porosity in concrete ?Explain why shape, surface texture, and gradation are more important for aggregate use in normal strength concrete than strength and origin of rock formation.Why is gypsum important in the performance of concrete? What is the importance of gypsum in concrete?
- What does the Specific Gravity of Fine Aggregate, Absorption of Fine Aggregate, and Surface Moisture of Fine Aggregate matter to engineering? and how it is essential in concrete.A1-What is the bond strength between steel and conerete and how it can be calculated? 2-What is the segregation of fresh concrete? Give its reason and how to control it? V3- What are the advantages of concrete? 3- Discuss the effect of age and curing on the compressive strength of concrete. 5-What are the main purposes of using plasticizer admixtures? 6-What are the main techniques that should be used to reduce heat of hydration in mass Coti fullowing:I need the answer as soon as possible
- 4b. Deformation occurs on freshly lay concrete when it finally set or harden.discuss the various causes for dimensional changes in the hardened concrete.1. What are the most common applications for structural steel?2. What is the purpose of reinforcing steel in concrete? Discuss the qualities of reinforcing steel in general.3. Discuss briefly four kinds of heat treatment used to improve the characteristics of steel. What are the benefits of each kind of treatment?A normal-weight concrete has an average compressive strength of 4500 psi. What is the estimated modulus of elasticity? What is the estimated tensile strength of this concrete?