Create a design mix using the ACI DESIGN MIX PROCEDURE with the following parameters: Air Entrained Concrete (Moderate) Required Strength = 35 MPa Required Slump = 6 inches Maximum Size of CA = 3/4 inches SG of Water = 1.00 SG of Cement = 3.15 SG of CA = 2.84 SG of FA = 2.40 Coarse Aggregates Parameters: Fineness Modulus of CA = 2.45 The density was identified using the ASTM C29, and the following data were gathered: Mass of container = 3.25 Kg Volume of container = 0.01439 m³3 Mass of container + Water = 17.64 Kg Mass of container + Coarse Aggregates = 26.42 Kg (Note: Use two decimal places for the density of aggregates)

Create a design mix using the ACI DESIGN MIX PROCEDURE with the following parameters: Air Entrained Concrete (Moderate) Required Strength = 35 MPa Required Slump = 6 inches Maximum Size of CA = 3/4 inches SG of Water = 1.00 SG of Cement = 3.15 SG of CA = 2.84 SG of FA = 2.40 Coarse Aggregates Parameters: Fineness Modulus of CA = 2.45 The density was identified using the ASTM C29, and the following data were gathered: Mass of container = 3.25 Kg Volume of container = 0.01439 m³3 Mass of container + Water = 17.64 Kg Mass of container + Coarse Aggregates = 26.42 Kg (Note: Use two decimal places for the density of aggregates)

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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Samples of coarse aggregate from a stockpileare brought to the laboratory for determination of specific gravities. Thefollowing weights are found: (5 points) 1. Mass of moist aggregate sample as broughtto the laboratory: 5,298 g 2. Mass of oven dried aggregate: 5,216 g 3. Mass of aggregates submerged in water:3,295 g 4. Mass of SSD (Saturated Surface Dry)Aggregate: 5,227 g Find 1. The aggregate bulk dry specific gravity 2. The aggregate apparent specific gravity 3. Absorption (report as percent)
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if my Fineness modulus for fine aggregates is 1.88, does it meet the standards fineness modulus for dine aggregates? And if my Fineness modulus for coarse aggregate is 2.61, does it also meet the standards? Explain
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 = 2.604; absorption 0.544% Aggregate B: Buck specific gravity = 2; absorption = 8% a. What is the unit weight of Aggregate A, kn/m?
Referring to the aggregate gradations A, B, and C in Figure , answer the following questions:a. What is the maximum size of each gradation?b. What is the nominal maximum size of each gradation?c. Classify each gradation as dense, open, or gap indicating the reason for each classification.
Show complete process. Aggregates from three sources having the properties shown in the table below where blended at a ratio of 30:45:25 by weight. Determine the properties of the aggregate blend.
Referring to the aggregate gradations A, B, and C in Figure P5.26, answer the following questions: a. What is the maximum size of each gradation? b. What is the nominal maximum size of each gradation? c. Classify each gradation as dense, open, or gap indicating the reason for each classification. 100 A 80- 60 40 0.075 0.30 1.18 2.36 4.75 9.5 12.5 19.0 25.0 0.15 0.60 Sieve sizes (mm) FIGURE P5.26 Percent passing 20
4-33. Following are results of gradation tests on three aggregates: Aggregate A 100% 92% 41% 19% 7% 4% 2% 1% Passing 25 mm (1 in.) 19 mm (3/4 in.) 9.5 mm (3/8 in.) 4.75 mm (No. 4) 2.36 mm (No. 8) 600 μm (No. 30) 300 μm (No. 50) 75 μm (No. 200) Aggregate B 100% 77% 60% 42% 36% 28% Aggregate C 100% 96% 79% 40% 16% 3% Combine these to give a gradation falling approximately in the center of the specification given in Section 4-5.1.
The mass of a bulk density bucket is measured as 2115 g when it is empty. The mass of the bucket when filled with water is 5148 g. The bucket is filled with aggregates and the total mass of the bucket and aggregate is measured as 7073 g. Calculate the bulk density of the aggregate.
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