Example of Mix design proportion calculation You need to design the mix proportion of a grade 40 for a column with workability of 50 mm slump and w/c not more than 0.55. The maximum size of gravel aggregate is 10 mm and the fine aggregate is quarry blast sand. The moisture content of the aggregate is as follow: The gravel aggregate is in moist condition with moisture content of =3.5%, dry density = 1700 kg/m³ The sand is in moist condition with saturated surface dry density = 2600 kg/m³. Percent passing at 600um =35%,water absorption = 0.5%, mc = 6% Aggregate relative combined density (saturated surface dry) = 2.60 Cement used is Sulfate Resistance because part of column is in soil identified to contain sulfate

Example of Mix design proportion calculation You need to design the mix proportion of a grade 40 for a column with workability of 50 mm slump and w/c not more than 0.55. The maximum size of gravel aggregate is 10 mm and the fine aggregate is quarry blast sand. The moisture content of the aggregate is as follow: The gravel aggregate is in moist condition with moisture content of =3.5%, dry density = 1700 kg/m³ The sand is in moist condition with saturated surface dry density = 2600 kg/m³. Percent passing at 600um =35%,water absorption = 0.5%, mc = 6% Aggregate relative combined density (saturated surface dry) = 2.60 Cement used is Sulfate Resistance because part of column is in soil identified to contain sulfate

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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A mix design requires 1160 kg/m3 of coarse aggregate (in dry condition), 599 kg/m3of fine aggregate (in dry condition) and 148 kg/m3 of water. The absorption capacityof the coarse aggregate is 0.4 % while the moisture content is 1.5%. The absorptioncapacity of the fine aggregate is 0.4 % while the moisture content is 4%. Pleaseanswer the following questions based on information given. a. What is the amount of Moist Coarse Aggregate? b. What is the amount of SSD Fine Aggregate? c. What is the amount of Moist Fine Aggregate? d. What is the amount of water after adjusting for moisture?
An aggregate blend is composed of 59% coarse aggregate by weight (Sp. Gr.2.635), 36% fine aggregate (Sp. Gr. 2.710), and 5% filler (Sp. Gr. 2.748). Thecompacted specimen contains 6% asphalt binder (Sp. Gr. 1.088) by weight oftotal mix and has a bulk density of 2305 kg/m3 . Ignoring absorption, computethe percent voids in total mix, percent voids in mineral aggregate, and thepercent voids filled with asphalt.
The specific gravity and absorption test (ASTM C128) were performed on fine aggregate. The following data were obtained.Given:Mass of SSD sand = 400.0 gMass of pycnometer with water = 520.0 gMass of pycnometer with water plus sand = 850.0 gMass of dry sand = 397.0 gRequired:a) bulk dry specific gravityb) bulk SSD specific gravityc) apparent specific gravity aaaaaaaaaa
coarse aggregate with a nominal maximum size of 2 inches and dry rodded density of 110 lb/ft3 will be used in a trial mix design. determine the coarse aggregate content in pounds per cubic yard required if the fine aggregate fineness modulus is 2.50.
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An aggregate blend is composed of 65% coarse aggregate by weight (SG 2.65), 30% fine aggregate (SG 2.70), and 5% filler (SG 2.75). The compacted specimen contains 6% asphalt binder (SG 105) by weight of total mix, and has a bulk densit of 2.255 Mg/m&3. Ignoring absorption.a. What is the percent voids fill with asphalt?b. What is the percent voids in mineral aggregates?c. What is the percent voids in total mix?
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46.5 kg of fine aggregate is mixed with 72.3 kg of coarse aggregate. The fine aggregate has a moisture content of 2.0% and its absorption is 3.4% whereas the coarse aggregate has a moisture content of 1.3% and its absorption is 3.0%. Determine the amount of water required to increase the moisture content so that there is 1% free moisture in the aggregate blend.
A concrete aggregate mix must contain at least 31% sand by volume for proper batching. One source of material, which has 25% sand and 75% coarse aggregate, sells for $3 per cubic meter (m3). Another source, which has 40% sand and 60% coarse aggregate, sells for $4.40/m3. Determine the least cost per cubic meter of blended aggregates.
Given the data in Table P9.33, select the blend and the design binder contentfor a Superpave design aggregate structure for a 5 million ESAL and a 19 mmnominal maximum aggregate size.
Underground Stormwater storage aggregate basin: - Surface Area: 500 ft x 100 ft - Thickness: 6in - Required Maximum Stormwater storage capacity: 75 000 gallons (1ft^3 = 7.48 gallon) -Assume water is only stored in void space between individual aggregate particles. Find: a. The Required Percent Void Content of the aggregate used? b. The Required Compacted Bulk Dry Unit Weight of the aggregate at the project site that will produce the required volume of storage. The aggregate has a specific gravity of 2.702. Round to the nearset whole number.