13/2/2025 Concrete Technology Q/ 1:1.5:3/0.62 concrete mix by weight, is to be used in cold weather, cement content = 5 Sack/m³ concreting when the temperature is assumed to be (32 °F), Calculate the temperature of the heated mixing water (in ˚C) to meet specification requirements in similar conditions.

13/2/2025 Concrete Technology Q/ 1:1.5:3/0.62 concrete mix by weight, is to be used in cold weather, cement content = 5 Sack/m³ concreting when the temperature is assumed to be (32 °F), Calculate the temperature of the heated mixing water (in ˚C) to meet specification requirements in similar conditions.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Soil Deposits-origin, Grain-size, And Shape

Section: Chapter Questions

Problem 2.15CTP: In concrete work, Fuller and Thompson (1907) suggested that a dense packing of grains can be...

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In concrete work, Fuller and Thompson (1907) suggested that a dense packing of grains can be achieved if the percent finer (p) and grain size (D) are related by the following equation, where n is a constant varying in the range of 0.3-0.6. Dmax is the size of the largest grain within the soil. p=(DDmax)n100 This equation is sometimes used in roadwork for selecting the aggregates. a. For n = 0.5, show that the soil is well graded. b. If n = 0.5 and Dmax = 19.0 mm, find the percentages of gravel, sand, and fines within the soil. Use the Unified Soil Classification System.
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Note For Problems 9.6-1 through 9.6-5, use the lower-bound moment of inertia for deflection of the composite section. Compute this as illustrated in Example 9.7. 9.6-1 Compute the following deflections for the beam in Problem 9.2-1. a. Maximum deflection before the concrete has cured. b. Maximum total deflection after composite behavior has been attained.
Note For Problems 9.6-1 through 9.6-5, use the lower-bound moment of inertia for deflection of the composite section. Compute this as illustrated in Example 9.7. 9.6-2 Compute the following deflections for the beam in Problem 9.2-2. a. Maximum deflection before the concrete has cured. b. Maximum total deflection after composite behavior has been attained.
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