concrete Technology// Practical Part. Answer carefully the following questions :1-What is the effect on physical properties of cement Cobal residue of cement onB.S 90 micron sieve is - wall 10% for UPC2-rate the meani ing of normal ciston cement.3 What is the songs of values of standard consistency of cement?4-How the consistency of cement paste is me arcu!5-State the dificance of initial setting ume and mat setting time of cement.6-What is the range value of compressive strength for normal concrete 7 days and28 days?7-What is the effect of aggregate grading on the properties of concrete?8-Describe kinds of slump of fresh concrete with sketch.9-What is the approximate value of Flexural strength if we have 25 MPa forcompressive strength?10-What is the approximate value of split tensile strength if we have 25 MPa forcompressive strength?

Answered: Image /qna-images/answer/69e9ad14-91ec-49e0-80c9-8cf5e6f2ac2b.jpg

6-What is the range value of compressive strength for normal concrete 7 days and 28 days? 7-What is the effect of aggregate grading on the properties of concrete? 8-Describe kinds of slump of fresh concrete with sketch. 9-What is the approximate value of Flexural strength if we have 25 MPa for compressive strength? 10-What is the approximate value of split tensile strength if we have 25 MPa for compressive strength?

6-What is the range value of compressive strength for normal concrete 7 days and 28 days? 7-What is the effect of aggregate grading on the properties of concrete? 8-Describe kinds of slump of fresh concrete with sketch. 9-What is the approximate value of Flexural strength if we have 25 MPa for compressive strength? 10-What is the approximate value of split tensile strength if we have 25 MPa for compressive strength?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Similar questions

choose the correct answer The water/cement ratio needed to obtain zero porosity (Vcp=0) in a fully hydrated cement paste is: (Assume volume of cement =100 m3). (note: Vcp= Vec+Vcw) a- 0.42 b- 0.36 c- 0.50 d- 0.28
The relative density of cement is 3.5. Ans for a): 3%; b) cement 12.7%, water 18.0%, coarse agg 42.1%, fine agg 24.2%
Q3 :: Know (five) of the following 1. Intended air 2. Alkali reaction 3 Slurry 4 Modified cement 6 - Aggregate smoothness coefficient 5. The absolute specific weight of aggregates پ: Answer the following: Use a table to compare) - Compare the capillary pores and the gel pores in the scientific cement paste 2- Compare between freezing and unreal freezing of the cement
Subject: Concrete Technology Question: a)What is the effect of the size of cement grain on hydration reaction? b)Describe how the compounds of clinker affect the properties of cement. c)When will you recommend high alumina cement in preference to low heat cement? d)Name five cement manufacturing companies in Pakistan
Given cement compounds: C3A = 7.3% C4AF = 12.2% C3S = 48.4% C2S = 29.7% What should be made in terms of sourcing raw materials if the manufacture wants to produce a Sulphate Resisting Portland Cement? Compare and contrast between Ordinary Portland Cement and Sulphate Resisting Portland Cement.
Discussion 1- Compared between water / cement ratio required for standard consistency with range specified by American standards ASTM? 2- Discuss the results of your group with other groups? 3- What is the factor affecting the measurement of standard consistency of the cement paste?
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)
- Why do it needto get the normal consistency of cement?- -How are these values of normal consistency become significant? -When there is 40kg of cement, mix with water, what is the volume of water needed in the mix to obtain its normal consistency, provided that the cement sample has the same brandused in the experimentregardless of the factors that may affect the results of consistency.
The cement paste was proportioned and mixed to normal consistency and placed in a moist cabinet at 1:30 PM. After 30 minutes, penetration test was performed and recorded to be 40 mm and the penetration in every 15 minutes were recorded at the table. Determine the initial and final time of setting of cement.
Write any five difference between Ordinary Portland Cement and Pozzolana PortlandCement
Calculate the chemical shrinkage (cm3/g) for one gram of completely hydrated Portland cement with the following compound compositions: C3S = 65%, C2S = 19%, C3A = 4%, C4AF = 9%
Q1. What is the role of gypsum in the production of Portland cement? And explain thefour main chemical compounds in Portland cement explain with all the details? Q2. Explain the hydration process for different compounds of cement with the chemicalreactions during hydration and their products and properties of final products.