Using the Department of Environmental (DOE) method, design a concrete mix that will be used in this project based on the specification in Table 1. The relevant details and calculations are to be entered on the standard mix design form. Table 1 Item Details 30 N/mm² at 28 days 10% defectives (k=1.28) Standard deviation 8 N/mm² Characteristic strength Slump (mm) 30 – 60 Maximum free water cement ratio 0.5 290 kg/m³ Uncrushed; relative density 2.5 Minimum cement content |Coarse aggregate (gravel) Maximum size 20 mm Sand Uncrushed; specific gravity 2.6 90% passing 600 µm Absorption capacity 1.6% Moisture content 3.5%

Using the Department of Environmental (DOE) method, design a concrete mix that will be used in this project based on the specification in Table 1. The relevant details and calculations are to be entered on the standard mix design form. Table 1 Item Details 30 N/mm² at 28 days 10% defectives (k=1.28) Standard deviation 8 N/mm² Characteristic strength Slump (mm) 30 – 60 Maximum free water cement ratio 0.5 290 kg/m³ Uncrushed; relative density 2.5 Minimum cement content |Coarse aggregate (gravel) Maximum size 20 mm Sand Uncrushed; specific gravity 2.6 90% passing 600 µm Absorption capacity 1.6% Moisture content 3.5%

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter11: Pricing Concrete Work

Section: Chapter Questions

Problem 4RQ

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Estimate the approximate quantity of Cement, Fine aggregate, Coarse aggregate and Water, for five (5) Concrete Cylinders. If one finalized the ratio from ACI-211 Mix design for specified strength as (1:1.3:2) and W/C of 0.48. (Assume the given ratio is by weight)
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Q#3: (a)What do you mean by concrete mix design; what are the major factors that must be considered while designing concrete mixes? (b)Name various methods used for concrete mix design worldwide? Which method is commonly used Pakistan? Subject is concrete technology Plz slove it
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