According to ASTM C33 Standard Specification for concrete Aggregates, what is the nominal maximum size aggregate?
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Q: b-What is the range value of compressive strength for normal concrete 7 days and 28 days? 7-What is…
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A: Given data - Cement -25 lbs Water - 11 lbs
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Q: What is the Significance of Water absorption of coarse aggregate?
A: Water Absorption of Coarse Aggregates: The water absorption of coarse aggregates represent the…
Q: What does the Specific Gravity of Fine Aggregate, Absorption of Fine Aggregate, and Surface Moisture…
A: Specific Gravity of Fine aggregate: It is the ratio of the weight of unit volume of Fine aggregate…
Q: Does fine aggregates suits concrete mixing
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Q: The following table represents a concrete mixture that has not been completely proportioned. The…
A: Question is based on the concrete mixture (oven dry basis) . Proportion of water, Air, coarse…
Q: A normal-weight concrete has an average compressive strength of 31 MPa. What is the estimated…
A: Average compressive strength of concrete =31 MPa
Q: specific gravity of coarse aggregate at saturated surface-dry (SSD) condition and its water…
A: Specific density or Relative density is defined as a dimensionless number which is the ratio of the…
Q: 1. Aggregate occupies what percentage by mass of normal concrete? 2. Natural aggregate deposits are…
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Q: How do the properties of aggregate affect the quality of the concrete mix?
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Q: what is the effect of bulk specific gravity, bulk specific gravity (SSD), apparent specific gravity,…
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A: Answer Introduction Ready-mix concrete is very old technology. the ready mix concrete is the first…
Q: The coarse aggregate that is stored in the yard has moisture content of 2%. What is the weight of…
A: Weight of oven dry=Weight of oven dry1+wWeight of water=Wd-Ww
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A: Modulus of elasticity of concrete= 4700f'c= 4700*4.909=23073.123 MPa As per ACI Code
Q: quantity of (cement, fine aggregate, coarse aggregate and water) for 1m³
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Q: A concrete mix includes the following ingredients per cubic meter: Cement%3D400 kg Water=184 kg No…
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Q: 1. What are the main reasons of concrete segregation? 2. What are the main causes of plastic…
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Q: what is the requirement volume of fine aggregates (s.g. = 2..4) if the mass nedded for the concrete…
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Q: How does the increase of maximum aggregate size used in the concrete mix design affect the…
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Q: Give 5 importance of specific gravity of aggregates in concrete mix. Explain each.
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Q: What factors affect the shrinkage of concrete?
A: Shrinkage of concrete:
Q: What are the functions of aggregate used in portland cement concrete?
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Q: MAKING AND CURING OF CONCRETE TEST SPECIMENS what is the volume of concrete?
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Q: 1. Explain why increasing the water content produces a weaker concrete. 2. What is heat of…
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Q: What is maximum capacity of measure should be used in determining the density of the concrete if the…
A: Explanation-Whenever the nominal maximum aggregate size of coarse aggregate is 25 mm, the maximum…
Q: What are the typical deleterious substances in aggregates that affect portlandcement concrete?…
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Q: What are the common minerals found in various kinds of aggregates used in concrete?
A: Finding out common minerals found in various kinds of aggregates used in concrete.
Q: What is the means of this ASTM C70 - Standard Testing Method for Surface Moisture in Fine Aggregates
A: This test technique isn't wide used. However, it's a convenient procedure for field or plant…
Q: Why is it necessary to measure the air content of concrete at the job site rather than at the batch…
A: It is necessary to measure the air content of concrete at the job site rather than at the batch…
Q: What is the maximum diameter of aggregate in cm?
A: This question is related to the Design concrete structures.
Q: You are working on a concrete mix design that requires each cubic yard of concrete to have a 0.43…
A: Mix design: Given: Water–cement ratio = 0.43 C.A =1232 kg/m3 Water content = 145 kg/m3 Air content…
Q: what is the value of gel porosity in concrete ?
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- Question 30 According to ASTM C33 Standard Specification for concrete Aggregates, what is the maximum size aggregate? % Retained by Sieve Size mass # 4 95-100 # 3/8 70-90 #3/4 30-65 1.5" 0-5 2" O Sieve 2" O Sieve #4 O Sieve 1.5" O Sieve 3/8"what is the aci design mix or proportioning of standard compressive ddesign strength values (without ad mixture or other supplementaries) of cement, water, ad aggregates and fine aggregates ratio for 3000 psi, 4000 psi and 5000 psi. please help me and if you searched for it pls inlcude the links here i want to read itGiven the data below: Mass of the Container - 275 grams Mass of the Oven-dried Aggregate + Container - 3145.2 grams Mass of the SSD Aggregate - 3211.2 grams Apparent mass of the Aggregate - 1935.5 grams Compute for the Bulk Specific Gravity of Aggregate in OD condition. a 2.25 b 2.47 c 2.53 d 2.60
- Aggregate Homework --No. (2) Q1: A/ Explain the concrete failures and which type is the common for concrete in Iraq? B/ Define A.C.V and list Aggregate shape? C/What is the effect of chloride in aggregate? Q2: Example: compare this sample of fine aggregate with Iraqi and ASTM specification in grading. Sieve 9.5 4.75 2.36 1.18 0.6 0.3 0.15 Pan Size (mm) Returned 45 152 96 88 53 32 20 Weight (gm) Q3: Define the fallowing 1- Aggregate absorption 2- Angularity number 3- Mortar-bar Q4: why the use of larger aggregate size don't contribute to higher strength? Q5: For a sample of coarse aggregate the saturated surface dry weight (2000gm) its dry weight (1982 gm) and its immersed weight (1238 gm) find: -The apparent specific gravity. - The absorption Q6: what the determination of the max. aggregate size depend on ? Q7: give the relation between the fallowing 1- Surface roughness of aggregate and workability 2- Strength of concrete and surface roughness of aggregate Q8: compare between Rounded…Elaborate/explain the scope and significance use in ASTM c70 - standard test method for surface moisture in fine aggregatesWhat is the relationship of rodded bulk density to percentage voids in aggregates? What is the purpose of this two? How can this two affect the concrete
- Q3: Discuss importance of sieve analysis test conducted on both fine and coarse aggregateQ4: Concrete cylinder placed in universal testing is subject to axial compressive load. Concretecylinder crushed at a load of 85 kilo pounds, calculate compressive strength of concrete. (Concretecylinder has 6 inches diameter and 12 inches height)determination of moisture content and surface moisture of aggregates is a method to determine wether the material is good or not, what is the essence of this methods in construction? Explain.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
- 1. Calculate the solid volume and percent of voids of an aggregate that weighs 111.2 pcf and has a specific gravity of 2.62.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. is the grade size used to identified the practical grading of the aggregate O 4.75 mm O 600 micron O 1.18 mm O 75 micron O Other: