Q2) Answer the followings:i-Why is cool clinker interground with gypsum in manufacture of Portland cement?2- Under what conditions would you recommend the use of rapid hardeningcement?3- What are the factors governing the desired aggregate grading?4-What are the required properties of fresh concrete?5-Why is compaction necessary to concrete?6-Explain effect of sea water on concrete.7-What happened when adding water to the concrete at the jobsite?& How can the progress of hydration of cement be determined?

Since you have posted a question with multiple sub parts, we will solve first 3 parts for you. To…

i-Why is cool clinker interground with gypsum in manufacture of Portland cement? 2- Under what conditions would you recommend the use of rapid hardening cement? 3- What are the factors governing the desired aggregate grading?

i-Why is cool clinker interground with gypsum in manufacture of Portland cement? 2- Under what conditions would you recommend the use of rapid hardening cement? 3- What are the factors governing the desired aggregate grading?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

8. What is the maximum allowable limit of Materials Finer Than 75 Mm (No. 200) Sieve in Coarse Aggregates in % according ASTM C33? 9. What is the maximum allowable limit (in %) of clay lumps and friable particles in fine and coarse aggregates? 10. What is the maximum allowable limit of loss (in %) of a coarse aggregate sample tested for abrasion and impact in the Los Angeles Abrasion Machine?
What can you conclude if the specific gravity of hydraulic cement I acquired is 3.14? How this will affect the concrete mix and the products it will produce? Does the construction works will stay strong and longer or not? Explain Also, what is the importance of this experiment of determining the specific gravity of hydraulic cement in construction works?
Q2:-From the sieve analysis (grading test), the following results are obtained: Sieve size, ASTM ‘Weight of aggregate retained on each sieve (gm) 1% inch 0 3/4 inch [ 840 3/8 inch [ 2100 No.d [ 560 No.8 | 286.8 No.16 [ 360 No.30 3272 No.50 358 No.100 [46 Pan ‘ 22 Calculate the followings: 1-Fineness modulus of the aggregate. 2-Average sieve size. 3-Maximum aggregate size. 4- Minimum cement content (Cos)
Q1 What moisture condition should the coarse and fine aggregate be in when mixing the concrete? A Unknown B Saturated C Oven Dry D Air Dried E SSD Q2 What restriction is placed on the size of a sample of a concrete batch? A 30 L B 15 L C 20 L D 10 L E 5 L
You want to increase the sustainability of a concrete mixture by replacing 35% of the portland cement by mass with a locally available natural pozzolan that can be used in place of ordinary portland cement (CEMPOZZ). The quantity of cement in the concrete mixture is 620 lb/yd3. You can assume that the specific gravity of portland cement and CEMPOZZ are the same for this problem. What is the quantity of CEMPOZZ for the mixture? Round to the nearest whole number and do not include units when entering your answer.
What is the effect of water–cement ratio on the permeability of hardened concrete? How does permeability affect the durability of the concrete structure?Using Figure 7.33, what is the approximate percent increase in the coefficientof permeability if the water–cement ratio increases from 0.5 to 0.6? Using thesame figure, what is the approximate percent increase in the coefficient ofpermeability if the water–cement ratio increases from 0.5 to 0.7?
Given the following data:slump requirement = 4" max aggregate size = 1" mass pf water = .193 kg/m3 water/cement ration = .48 mass of coarse aggregates = 1105.5 kg/m3 total mass of the concrete = 2375 kg/m3 compute for the mass of fine aggregate
The moisture content of coarse aggregate is 0.60%. If the mass of the aggregate is 1,290 kg, adjust the mass of the aggregate. If the volume of sand is 0.30 cubic meter and its specific gravity is 1.50, what is the mass of the sand? If the mass of mixing water is 175 kg, and the required water-cement ratio is 0.65, how much cement powder is needed in the concrete mix? If the target slump of concrete is 160 mm, the maximum nominal size of the coarse aggregate is 37.5 mm, and the smallest nominal size is 9.5 mm, what is the estimated entrapped air in the ordinary concrete mix? The nominal maximum size of coarse aggregate is 25mm, the fineness modulus of coarse aggregates is 2.80, dry rodded mass of coarse aggregates is 1,100 kg and the fineness modulus of fine aggregates is 2.50. How much coarse aggregates is needed in the concrete mix? If the nominal maximum size of coarse aggregates is 25mm, what is the first estimate of air-entrained concrete?
Given the following data: Slump Requirement = 4" ements Max. Aggregate Size = 1.0" nts Water/cement Ratio = 0.55 Mass of Cement = 350.91 kg/m³ Mass of the Coarse Aggregates = 1072 kg/m³ Total Mass of the Concrete = 2375 kg/m³ Compute for the mass of Fine Aggregates.
If the compressive strength is 30.68 MPa, water - cement ratio is 0.45, and coarse aggregate is 992 kg/m3, determine Air content, in percent Water content, kg/m3 Cement, in kg/m3 Admixtures, in ml/m3 (ive seen 2 different answers here, i posted this question twice, i want to ask if the reduction is still included in water content)
-For the concrete mixture design (oven dry) summarized in the tablebelow answer the following questions a) Determine the oven dry weight of the fine aggregate.b) Determine the coarse aggregate stock weight. c) Determine the amount of water ADDED/REMOVED by the coarse aggregate. d) The owner wants to replace 10% of the cement with TYPE F fly ash (Sp.gr = 2.50).What is the oven dry weight of the fine aggregate for this modified mixturedesign?
Discussion 1- What is the factors affecting the strength of cement paste? 2- Discuss the curve drawn between water/cement ratio and compressive strength? 3- Compare the results with Iraqi standards and discuss the reasons of results deviation? 4- Compare between the compressive strength obtained from standard consistency with standard compressive strength according to ASTM, namely 15 MPa.?