FOLLOW THE STEPS PLS AND ANSWER SAMPLE 1 USING VOLUME METHOD ACI METHOD OFCONCRETE MIX DESIGNStep 1. Choice of slumpStep 2. Choice of maximum size of aggregateStep 3. Estimation of mixing water and air contentStep 4. Selection of water/cement ratioStep 5. Calculation of cement contentStep 6. Estimation of coarse aggregate contentStep 7. Estimation of Fine Aggregate ContentStep 8. Adjustments for Aggregate MoistureStep 9. Trial Batch AdjustmentsSTEP 7 - Estimation of FineAggregate ContentV=WVOLUME METHODSWeight of waterdensity of waterWeight of cement3. 15 x density of waterWeight of CAS. g) of CA X density of waterWATERCEMENT )s.g.COARSEAGGREGATESAIR%Air x Volume of ConcreteAIR%Air x Volume of ConcreteSTEP 7 - Estimation of FineAggregate ContentVOLUME METHODVolume of FA = V conc – V Cement – V water – V cA – V Air/- SAMPLE 1Design a concrete mix for construction of an elevated water tank.The specified design strength of concrete is 30 MPa at 28 daysmeasured on standard cylinders.The specific gravity of FA and C.A. are 2.65 and 2.7 respectively.The dry rodded bulk density of C.A. is 1600 kg/m3, and finenessmodulus of FA is 2.80Ordinary Portland cement (Type I) will be used. 5.9.&15C.A. is found to be absorptive to the extent of 1% and free surfacemoisture in sand is found to be 2 per cent.

Absolute Volume Method: Absolute volume method is one of the methods used for concrete mix design.…

ACI METHOD OF CONCRETE MIX DESIGN Step 1. Choice of slump Step 2. Choice of maximum size of aggregate Step 3. Estimation of mixing water and air content Step 4. Selection of water/cement ratio Step 5. Calculation of cement content Step 6. Estimation of coarse aggregate content Step 7. Estimation of Fine Aggregate Content Step 8. Adjustments for Aggregate Moisture - Step 9. Trial Batch Adjustments

ACI METHOD OF CONCRETE MIX DESIGN Step 1. Choice of slump Step 2. Choice of maximum size of aggregate Step 3. Estimation of mixing water and air content Step 4. Selection of water/cement ratio Step 5. Calculation of cement content Step 6. Estimation of coarse aggregate content Step 7. Estimation of Fine Aggregate Content Step 8. Adjustments for Aggregate Moisture - Step 9. Trial Batch Adjustments

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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For the dry rodded bulk density test of coarse aggregate as performed in lab 4, angular aggregates have more void space than rounded aggregates. OAI True O B) False What are the steps of placing fresh concrete? OA Float, Screed, Consolidate O B) Screed, Consolidate, Float OC) Consolidate, Float, Screed O D) Consolidate, Screed, Float When working with concrete in hot weather, what is an acceptable measure to help in the batching and placing of concrete? O A) Spray concrete forms O B) All of the above O) Spray the aggregates O D) Add ice at the batch plant The highest concrete strength is obtained when there is a: OA Low w/c and concrete is moist cured for as long as possible B) High w/c and concrete is moist cured for as long as possible C) Low w/c and concrete is moist cured for 24 hours and then dried D) High w/c and concrete is air cured for as long as possible < o O
Define and discuss the following: (a) the terms maximum aggregate size and grading, as used in concrete technology. (b) What considerations control the choice of the maximum aggregate size of aggregate in a concrete? (c) Discuss the reasons why grading limits are specified.
2) Compare between maximum aggregate size and nominal maximum aggregate size in superpave and traditional system?
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A sieve analysis test was performed on a sample of coarse aggregate and produced the following results:a.) Calculate the percent passing through each sieve.b.) What is the maximum size?c.) What is the nominal maximum size?
Uniformly graded aggregate gradations have missing particles of one or more sizes. True False
The specific gravity and absorption test (ASTM C128) was performed on fine aggregate and the following data were obtained: Mass of SSD sand 500.0 g Mass of pycnometer with water only = 623.0 g Mass of pycnometer with sand and water = 938.2 g 495.5 g Mass of dry sand Calculate the specific gravity values (dry bulk, SSD, and apparent) and the absorption of the fine aggregate.
The specific gravity and absorption test (ASTM C128) were performed on fine aggregate. The following data were obtained.Given:Mass of SSD sand = 450.0 gMass of pycnometer with water = 550 gMass of pycnometer with water plus sand = 840 gMass of dry sand = 446.5 gRequired:a) bulk dry specific gravityb) bulk SSD specific gravityc) apparent specific gravityd) absorption, in percente) free moisture if the sand in the stockpile has a moisture content of 5%.
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Calculate the quantities of cement, water, and fine aggregate and coarse aggregate per trial mix of 0.07 m3 for the following specifications. • Characteristic compressive strength = 50 MPa at 28 days; S=5 MPa • Cement Type I; Slump required = 30-60 mm; • Max. Aggregate size = 10 mm; • Coarse aggregate CRUSHED (10 mm), •Fine aggregate CRUSHED (85% pass 600 microns) • Maximum allowable free - water/cement ratio 0.50; • Maximum allowable cement content = 550 kg/m3
Define the minimum weight of fine aggregate for sieve analysis as per ASTM C136 ?
Q3) describe the sieve analysis of aggregates with all details?