From the tabulated data and result of determining consistency in reference to our laboratory exercise 8. (Penetration of 33 to 35mmfrom the top determines the consistency of Portland cement). What is the consistency of cement? Cement (grams) Trial Water (grams) Penetration (mm) Consistency 1 70 30 38 2 70 25 34 3 70 20 28

From the tabulated data and result of determining consistency in reference to our laboratory exercise 8. (Penetration of 33 to 35mmfrom the top determines the consistency of Portland cement). What is the consistency of cement? Cement (grams) Trial Water (grams) Penetration (mm) Consistency 1 70 30 38 2 70 25 34 3 70 20 28

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter2: Origin Of Soil And Grain Size

Section: Chapter Questions

Problem 2.1CTP: Three groups of students from the Geotechnical Engineering class collected soil-aggregate samples...

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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?
Compare exposed and unexposed cements based on the results of the experiment. How these results help you choose good quality of cement? State some factors that may affect the quality of cement.
solve each consistency and Penetration of 33 to 35mmfrom the top determines the consistency of Portland cement Trial Cement (grams) Water (grams) Penetration (mm) Consistency 1 70 30 38 2 70 25 34 3 70 20 28
Determine the amount of water needed to achieved the normal consistency of 650 grams cement by using Vicat apparatus. The paste shall be of normal consistency when the rod settles to a point 10 ± 1 mm below the original surface in 30 seconds after being release. Determine the moisture content in percent if the rod penetration is 9 mm. a. 32.78% b. 30.34% c. 46.23% d. 42.51% e. 37.86%
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%
TIME OF SETTING OF HYDRAULIC CEMENT BY VICAT NEEDLE make up solution / give example with solution ( i need example of this) Specimen No. Time (second) Penetration (mm) 1. 30 40 180 38 800 34 1200 30 2000 22 30000 2 35000 none Initial Set: __________ secondsFinal Set: ___________ seconds
Calculate the amount of water required for normal consistency to the nearest 10 percent and report it to the nearest 50 percent of the weight of dry cement. For determination of normal consistency use the following data:Water Content Penetration15% 2 mm25% 5 mm35% 8 mm45% 13 mm 55% 20 mm
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.
Which of the following apparatus is used for testing the setting time of hydraulic cement? 1. Vicat needle with 1 mm diamter 2. Hydraulic Jack 3. Vicat needle with 10 mm needle 4. Cnnsolidometer
Tabulated results for consistency of cement are shown below. What is the water cement ratio correspond to standard consistency of the cement? Trial Mass of cement (gm) Mass of water (gm) Penetration (mm) Water-cement ratio (%) 1 60 30 10 2 60 19 6 3 60 25 8 4 60 10 2
a) What is the Yield Point? b) What does it characterize? c) What is the difference between Gel Strength and Yield Point of a drilling mud?
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)