Q1: Calculate the amount of materials needed to prepare (1.3 m') of concrete to be used in the casting of an isolating footing, so that it meets the following requirements: the compressive strength required at 28 days is 22 Mpa, slump of 75 mm, Standard deviation (Sd) 3 Mpa, K=1.04, No-air entrainment is required, the fineness modulus = 2.40 and the percentage absorption is 2% for fine Aggregate, bulk density is 1650 kg/m' and the percentage absorption is 0.7% for Coarse Aggregate.

Q1: Calculate the amount of materials needed to prepare (1.3 m') of concrete to be used in the casting of an isolating footing, so that it meets the following requirements: the compressive strength required at 28 days is 22 Mpa, slump of 75 mm, Standard deviation (Sd) 3 Mpa, K=1.04, No-air entrainment is required, the fineness modulus = 2.40 and the percentage absorption is 2% for fine Aggregate, bulk density is 1650 kg/m' and the percentage absorption is 0.7% for Coarse Aggregate.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Show your solution and diagram. Design a square spread footing to support an edge column 460mm x 460mm in dimension. The allowable soil pressure is 478.5 KPa, unit weight of soil is 20.4 KN/m³, unit weight of concrete is 23.5 KN/m³, fć = 21 MPa, fy = 414 MPa, 75mm clear cover and 25mm diameter rebars both ways.
A footing (F1) has dimensions 1.2m x 1.2m x 0.3m. How many bags of cement shall be used for 10 pieces of F1? Use class “C” concrete and 40kg/bag of cement.
Q: a) For what purpose we use Ultrasonic Pulse velocity test? Also classify the quality of concrete if Ultrasonic Pulse velocity is 3.0km/sec? b) Why and how rebound hammer is used for concrete? SIR, PLS GIVE ME PROPER AND CORRECT ANSWER WITH FULL DETAILS. THANKS
10. Refer to Figure III-1 attached. What would be the required slab thickness according to the AASHTO 1972 design guide for the following conditions: Daily ESAL=2,000, 20-year design period, design working stress ft = 600 psi, and a modulus of subgrade reaction of 200 psi/in?a. 6.5b. 9.5c. 10.5d. 11.5
Draw the compressive strength vs. time curves for the mortars produced by using Type I, Type III, and Type IV (ASTM) Portland Cements (PCs) on the same diagram by clearly labeling each curve. What is the primary reason for the distinct behavior observed for these different PCs? Which one would be preferred for an emergency repair works?
A footing requires 8 bags of cement. If the water-cement ratio is 0.53, how many water (liters) shall be used in the mixture? Use 40kg/bag of cement.
Subject: Concrete Technology Q:1 a) For what purpose we use Ultrasonic Pulse velocity test? Also classify the quality of concrete if Ultrasonic Pulse velocity is 3.0km/sec? b) Why and how rebound hammer is used for concrete?
please provide answer ASAPQ#1: Part A) When concreting is needed to be performed in extreme hot weather. What are the different types of cement and admixtures which may be used to achieve better strength as well as durability of resulting concrete? Justify your answer. Part B) What is meant by compression failure in reinforced concrete flexural members? Why is it not permitted by ACI code?
You are to design the concrete mix proportion for concrete foundations (single footing) in a residential project in Pampanga, with a required 28-day design strength of 5000 psi. Maximum aggregate size to be used is ¾ inch, and the allowed slump is 3-4 inches. Use conversion factor 1 yd = 3 ft. Determine the mixture proportions of water, cement, coarse aggregate, and fine aggregate in terms of Ib/y^3, as well as air content in %. Express final answers in two decimal places. Cement: Type I, Specific Gravity (SSD) = 3.15 Gravel: Bulk Specific Gravity (SSD) = 2.59, Dry Rodded unit weight = 105.4 lb/ft^3. Absorption Capacity 0.89%, Surface Moisture 0.00 % River Sand: Bulk Specific Gravity (SD) = 2.61, Absorption Capacity 2.30%, Surface Moisture 0.00%. Fineness Modulus = 2.70 Refer to the Table of Values in the pictures
Problem Solving You are to design the concrete mix proportion for concrete foundations (single footing) in a residential project in Pampanga, with a required 28-day design strength of 5000 psi. Maximum aggregate size to be used is ¾ inch, and the allowed slump is 3- 4 inches. Use conversion factor 1 yd = 3 ft. Required: Determine the mixture proportions of water, cement, coarse aggregate, and fine aggregate in terms of Ib/yd?, as well as air content in %. Express final answers in two decimal places.
A footing requires 4 bags of cement. if the water-cement ratio is 0.45, determine the amount of water(liters) that shall be used in the mixture. use 40kg/bag of cement.
What are the advantages and disadvantages to using a rebound hammer for nondestructive testing? Considering the drawbacks, how is a rebound hammer most effectively put to use in evaluating concrete?