Problems 3. Calculate the quantities of cement, sand and coarse aggregate required to produce one cubic meter of concrete of mix proportion 1: 1.5: 3 (by volume) with water- cement ratio of 0.45 (by mass). Bulk densities of cement, sand and coarse aggregates are 14.7, 16.66, 15.68 kN/m³ respectively. Percentage of entrained air is 2.5. Specific gravity of cement, sand and coarse aggregate are 3.15, 2.6 and 2.5 respectively.

Q: Discuss five different desirable characteristics of aggregate used in portland cement concrete.

A: The five different desirable characteristics of aggregate used in portland cement concrete are as…

Q: 1. Calculate the solid volume and percent of voids of an aggregate that weighs 111.2 pcf and has a…

A:

Q: Calculate the proportions by weight of materials in the mix on site, the weight of the materials to…

A: Cement=260 kg/m3 Water=185 lt/m3 Fine aggregate, A.F=930 kg/m3 Gravel Aggregate, A.G=1121 kg/m3

Q: sp wt of SSD CA = 6135 g wt of submerged CA = 3901 g wt of oven-dry CA = 6008 g Calculate the bulk…

A: A=weight of oven dry coarse aggregate B=weight of SSD coarse aggregate C=weight of submerged coarse…

Q: 46.5 kg (102.3 lb) of fine aggregate is mixed with 72.3 kg (159.1 lb) of coarse aggregate. The fine…

A: The given data is shown below:

Q: The following mix design information is provided to you for 1 m³ concrete. • Air content = 5% • w/cm…

A: Reference : Concrete technology, Mix design ACI 318 mix design code Given : Air content, w/c ratio,…

Q: A concrete is composed of a mixture 286 lbm of cement (SG = 3.11), 520 kgm gravel (SG 2.71), 260 kgm…

A:

Q: Amswer the following questions: Part I (True or False) 1) Aggregates having high absorption value…

A: 1) False - Aggregate having low absorption ratio are preferable for concrete so that water- cement…

Q: 5.36 Calculate the fineness modulus of aggregate A in Problem 5.27. Is your answer within the…

A: This question is related to the Soil Mechanics from Civil Engineering. As per question, I solved…

Q: Determine the suitability of the aggregate, with the gradation tabulated below, for use in Portland…

A:

Q: sample of lightweight coarse aggregate weighs 532.3 g when oven-dried, 615.7 g when saturated…

A:

Q: In proportioning a concrete mix, the coarse and fine aggregates had the following properties…

A: Coarse aggregate weight = 800 lbDry aggregate weight = 350 lb

Q: 5. Calculate the solid volume and percent of voids of an aggregate that weighs 111.2 pcf and has a…

A: unit wt of the aggregate=111.2 pcfweight of the aggregate for 1 ft3  volume  w=111.2 lbspecific…

Q: A concrete mix consists of 5 gallons of water for each bag of cement. What is the expected…

A: To find the strength of the concrete depending on the values given. 5 gallons of water per each bag…

Q: Design a concrete mix according to the following conditions:   Design Specifications  Concrete…

A: All the design calculations and specifications are based on ASCE codes.   For 50mm slump and 37.5mm…

Q: A civil engineer wants to design a concrete mix design with the following criteria: Design a…

A: Concrete Mix Design: Blend configuration can be considered the most common way of choosing…

Q: 46.5 kg of fine aggregate is mixed with 72.3 kg of coarse aggregate. The fine aggregate has a…

A: fine aggregate:water content=2%absorption=3.4%weight=46.5 kgcoarse aggregate:water…

Q: Design a concrete mix for the following performances and ingredients: • Compressive strength at 28…

A: Consider the given data Density of CA=1600 kg/m3   AssumedSp Gr. of cement=3.15  AssumedSp Gr of…

Types of Concrete

Concrete is the fundamental material used in civil engineering such as building materials for building structures. Concrete is an aggregate mixture of cement, sand, and fine and coarse rock pieces. The cement acts as a binding material that holds the compositions together, sets, and hardens with time. Apart from cement, there are other different types of binding materials used, such as lime concrete, bitumen, asphalt, and so on.