Question 1When and how would you cure the samples?Use the editor to format your answerQuestion 2On what dates and time would you test(Compressive strength) the specimens for each size of aggregate until it reaches its desiredstrength?Use the editor to format your answer Problem: A project you are a part of have a Concrete Pouring schedule on January 30,2022 at 8:00 AM in the morning. On the dayof the scheduled pouring, the first transit mixer of fresh concrete arrived on site at exactly 1:35PM. A slump test is thenconducted to test the workability of the concrete. You accepted the material as it passed the specification and proceeded withthe making of specimen (ASTM C31). At around 2:07 PM, the second mixer arrived. The first transit mixer carries a 3/8" (Aggregate)fresh concrete intended for the 4 columns at Second floor with 900mmx700mm dimension at a concrete pouring height of 2.1m.Meanwhile, the second transit mixer with 3/4" (aggregate) fresh concrete is intended for the pouring of SOG with an area of 38.5sq.m with slab thickness of 150mm. 12 cylindircal specimens were made for each aggregate size of fresh concrete.Structural Notes:UNLESS NOTED OTHERWISE ALL CONCRETE SHALL BE NORMAL WEIGHT AND HAVE THE FOLLOWING MINIMUM 28 DAYSTRENGTHS:STRUCTURESTRENGTHFOUNDATIONS....5000 PSIRC WALLS,COLUMNS,SHEAR WALLS...6000 PSISG.3000 PSIQuestion 1When and how would you cure the samples?Use the editor to format your answer

All of the cylindrical specimens will be demoulded on next day 31st of January at 2:30pm. That means…

Question 1 When and how would you cure the samples? Use the editor to format your answer Question 2 On what dates and time would you test(Compressive strength) the specimens for each size of aggregate until it reaches its desired strength? Use the editor to format your answer

Question 1 When and how would you cure the samples? Use the editor to format your answer Question 2 On what dates and time would you test(Compressive strength) the specimens for each size of aggregate until it reaches its desired strength? Use the editor to format your answer

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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Coarse aggregate is placed in a rigid bucket and rodded with a tamping rod to determine its unit weight. The following data are obtained: Volume of bucket =14L Weight of empty bucket = 9.21kg Weight of bucket filled with dry rodded coarse aggregate: Trial 1 =34,75 kg Trial 2 =34.06 kg Trial 3 =35.74 kg a. Calculate the average dry-rodded unit weight b.If the bulk dry specific gravity of the aggregate is 2.620, calculate the percent voids between aggregate particles for each trial.
Sieve analysis of a sample of fine aggregate resulted in the following data No. Sieve number 4 8 16 30 50 100 Sieve opening (mm) 4.75 2.36 1.18 0.6 0.3 0.15 Weight retained (g) 13 75 120 126 105 61 A) The total weight of the sample, assuming no mass loss during the analysis, is______ (g) a) 505; b) 500; c) 550 B) The half sieve used in the experiment is________. a) No.8; b) No.50; c) none of the above C) The fineness modulus of the aggregate________. a) 6.13; b) 3.16; c) 1.36 D) The average size of the aggregate___________. a) No.30; b) No.4; c) No.16
Laboratory specific gravity and absorption tests are run on two coarse aggregate sizes, which have to be blended. The results are as follows: Aggregate A: Buck specific gravity = 2.395; absorption = 4.69% Aggregate B: Buck specific gravity = 2.601; absorption = 0.51% What is the specific gravity of a mixture of 50]% aggregate A and 50% aggregate B by weight?
A sieve analysis test was performed on a sample of coarse aggregate and produced the following results:A.) Calculate the fineness modulus of aggregate? Is in within the typical range?
Quartering (or splitting) means reducing sample sizes into reasonable volumes. Would you expect every after each quartering (or splitting) process, the weight of the original aggregates would be reduced to half or almost half? Why or why not? Defend your reason.
If the specimen is originally square and has dimensions of a = 4 in., b = 3 in., and a thickness of t = 0.4 in., determine its new dimension a' after the load is applied. Express your answer to six significant figures and include appropriate units. a' = 4.00737 μA Submit Previous Answers Request Answer Part B X Incorrect; Try Again; 5 attempts remaining 0 in Determine its new dimension b' after the load is applied. Express your answer to six significant figures and include appropriate units. μᾶ b= 3.00333 ? in Submit Previous Answers Request Answer ? X Incorrect; Try Again; 5 attempts remaining
4 pts Question 23 What is the fineness modulus of this aggregate? % Cumulative Retained Retained Mass 0% Sieve Size (US) (g) Retained Passing 1" 3/4" 1/2" 3/8" # 4 650 18.3 700 19.7 632 17.8 175 4.9 # 8 200 5.6 #16 W 150 4.2 #30 125 3.5 #50 331 9.3 #100 288 8.1 #200 250 7 Pan 50 1.4 Total 3551 O 5.20 O 1.57 O 3.89 O 6.50
Question 17) The following measurements were recorded during compression test on two specimens: Mild steel and Cast Iron. The width and thickness of the specimen before the test are given in the table below (every dimension was measured three times) Cross-Section Dimensions (mm) Steel Cast Iron Measure #1 w= 12.66, t=12.67 w= 12.67, t=12.67 Measure #2 w= 12.67, t-12.67 w= 12.66, t=12.65 Measure #3 w- 12.68, t-12.67 w- 12.64, t-12.67 Calculate the average width (w) and thickness (t) in mm of both mild steel and cast- iron respectively. The order is w, t (mild steel), w, t (cast-iron) (Use two decimal places. do not add units, e.g. 10.02) With reference to data in question 17, what is the original cross section areas (Ao) of the mild steel and cast-iron respectively. (Use two decimal places, without units, e.g., 120.52)
Sieve analysis test for fine aggregates was performed on a sample of fine aggregates and produced the following results: a. Calculate the percent passing through each sieve. b. Plot the percent finer in a semi-log gradation chart. c. What is the maximum aggregate size of the sample? d. What is the nominal maximum aggregate size of the sample? e. What is the fineness modulus? Is it in typical range? " Sieve Size, 9.5 4.75 3.35 2.36 2.00 1.18 0.85 0.60 0.425 0.30 0.25 0.18 0.15 (No. 0.075 Pan mm (in) (3/8) (No. 4) (No. 6) (No. 8) (No. 10) (No. 16) (No. 20) (No. 30) (No. 40) (No. 50) (No. 60) (No. 80) 100) (No. 200)| Amount 25 59 75 86 115 136 169 192 225 198 173 112 90 33 12 Datained.
Sieve analysis test for fine aggregates was performed on a sample of fine aggregates and produced the following results: a. Calculate the percent passing through each sieve.b. Plot the percent finer in a semi-log gradation chart.c. What is the maximum aggregate size of the sample?d. What is the nominal maximum aggregate size of the sample?e. What is the fineness modulus? Is it in typical range?