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.

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.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: How to place the aggregate sample in the sieves before sieving and how to weigh aggregate retained…

A: There are different sizes of sieves that help us in aggregate gradation or sieve analysis. It is the…

Q: Sieve Analysis of Fine Aggregates) Students have gathered data for sieve analysis of the following…

Q: civil engg material

A: Gradation of Aggregate- It is defined as a process that helps in particle size distribution which is…

Q: A specific gravity test was performed on a sample of fine aggregate and produced the following…

A: To find Specific gravity of fine aggregates Classify aggregate on basis of surface texture

Q: The mass of fine aggregate B has been reduced and weighed to conduct an aggregate test shown in…

Q: 2. In a ready-mix concrete plant, cylindrical samples are prepared and tested periodically to detect…

Q: a. Explain the term super plasticizers. How are they useful in concrete production? b. Explain the…

Q: The following information is available from a specific gravity test on fine a wt of SSD sand = 509 g…

A: A =weight of oven-dry sandB = weight of pycnometer filled with waterC = weight of pycnometer filled…

Q: Based on the data shown in Table select the blend for a Superpave design aggregate structure. Assume…

Q: What is maximum capacity of measure should be used in determining the density of the concrete if the…

A: B) 14 Liters

Q: The grading of three aggregates is given below. a) Calculate the percent passing for a combined…

A: Given: Results of gradation tests on three aggregate A,B and C is shown below Sieve size…

Q: Q4: A: What is self-consolidating concrete? How are its properties achieved? How are these…

A: (A) Self consolidating concrete (SCC), additionally referred to as self compacting concrete, may be…

Q: List the steps involved in proportioning of concrete (i.e. mix design) if the required concrete…

A: Moisture content MC : The aggregates contain some amount of water already. Such water is called as…

Q: 7) The grading of three aggregates is given below. a) Calculate the percent passing for a combined…

A: Aggregate is a granular material which is generally known by names such as sans or gravel. It is an…

Q: why unit weights of aggregates will allow the contractors to meet their construction requirements?…

Q: 1. What is the unit weight of aggregate?

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Review ASTM D75 and summarize the following:a. Sampling aggregates from conveyer belts.b. Sampling…

A: In a concrete about 60-80% of the volume and 70-85% of mass is aggregate.Aggregate act as a strength…

Q: Define the minimum weight of fine aggregate for sieve analysis as per ASTM C136 ?

A: ASTM C136, 2006 Edition, February 15,2006 - Standard Test Method for sieve analysis of Fine and…

Q: Testing Procedure for Unit Weight of Aggregate.

A: ObjectiveDetermine of unit weight of the aggregate Equipment used1) Tamping Rod - Dia of 16 mm and…

Q: 5. Calculate the sieve analysis of the following aggregate and plot the grading curve by Excel…

A: Draw the Gradation Curve by using Microsoft Excel. The data of sieve analysis is given in…

Q: The mass of aggregate B has been reduced and weighed to conduct an aggregate test shown in Table 2.…

A: Solution: Given: Mass of Aggregate: 500.8g SSD Mass of Aggregate: 500.2g Mass of pycnometer with…

Q: Discuss Slag cement. a. What is Slag cement application in the industry b. What are the…

A: The ground granulated blast furnace slag (GGBS) is termed as the by-product of the iron…

Q: The following table are data of mixtures from different suppliers. The structural engineer requires…

Q: Find 4 published values for bulk density for small coarse aggregate, and quote their references.

A: Four Values of Bulk density of small coarse aggregates are: The approximate bulk density of…

Q: What are the main purposes of Sieve Analysis of aggregates?

A: purpose of sieve analysis Main purpose of sieve analysis is to determine the distribution of…

Q: A sieve analysis was conducted on a graded aggregate with a nominal maximum aggregate size of 20 m…

A: Soil boundaries give an idea of its compatibility with soil and water or both compounds. When the…

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

Q: 5.10 Samples of coarse aggregate from a stockpile are brought to the laboratory for determination of…

A: Given:- The following weights are found from the sample of coarse aggregates:- Mass of moist…

Q: 2) Compare between maximum aggregate size and nominal maximum aggregate size in superpave and…

Q: Q.1 Two groups of concrete produced with exactly the same mixing properties are given in the Table…

A: As per the guidelines we are supposed to solve only three sub-parts.

Q: Specific Gravity and Absorption of Coarse Aggregates What are the possible discussion of…

A: There are two types of aggregates, they are fine aggregate and coarse aggregate. Coarse aggregate…

Q: Two groups of concrete produced with exactly the same mixing properties are given in the Table…

A: Compressive strength of concrete- Usually, the compressive strength of concrete…

Q: Given the bulk specific gravities of 2.65 for coarse aggregate, 2.69 for fine aggregate, and 2.73…

Q: The mass of aggregate B has been reduced and weighed to conduct an aggregate test shown in Table 2.…

Q: The following table represents a concrete mixture that has not been completely proportioned. The…

A: The water to cement ratio compares how much water versus cement is used in a concrete mix. A low…

Q: 1) Discuss the effect of specific surface of aggregate mixture on concrete strength Illustrate your…

A: here explaining by some fundamentals and by referring codes

Q: Sieve Size Amount Retained, Ib 3 in. 2 in. 1-1/2 in. 3.7 1 in. 15.9 3/4 in. 12.0 1/2 in. 13.5 3/8…

Q: 5.43 What is alkali-silica reactivity? What kinds of problems are caused by ASR? Mention two ways to…

A: Alkali Silica Reactivity Alkali-silica reactivity (ASR) is a chemical reaction that occurs between…

Concept explainers

Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.

Question

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.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Thoroughly mix the aggregate sample and reduce it to an amount suitable for testing, using a sample splitter or by quartering. The minimum sample size should be as follows: Minimum Mass, kg Fine aggregate with at least 95% passing 2.36-mm sieve 0.1 Fine aggregate with at least 85% passing 4.75-mm sieve 0.5 Coarse aggregate with a nominal maximum size of 9.5 mm 1 Coarse aggregate of a nominal maximum size of 12.5 mm 2 Coarse aggregate of a nominal maximum size of 19.0 mm Coarse aggregate of a nominal maximum size of 25.0 mm 10 Coarse aggregate of a nominal maximum size of 37.5 mm 15
What makes sampling as the most important step in assuring the quality of the aggregates?
Differentiate between Scalar Aggregate and Vector Aggregate.
if my Fineness modulus for fine aggregates is 1.88, does it meet the standards fineness modulus for dine aggregates? And if my Fineness modulus for coarse aggregate is 2.61, does it also meet the standards? Explain
Subject: civil engineering
What are the three weights needed in conducting a specific gravity of a coarse aggregate?
The following information is available from a specific gravity test on fine aggregate: wt of SSD sand = 509 g wt of pycnometer plus sand plus water = 2665g wt of pycnometer plus water = 2329 g wt of oven dry sand = 491 g Calculate the bulk specific gravity (SSD), bulk specific gravity, apparent specific gravity, and absorption (dry) of the material.
SECTION A Answer ALL Questions Physical and mechanical properties of civil engineering materials, their behaviour and characteristics in design and construction works. Answer below questions using your own words and understanding. (a) (i) Design a concrete mix for the following given data: A mean 28-day compressive strength (measured on standard cubes) of 45 MPa Slump = 40 mm, Uncrushed aggregate with maximum size of 20 mm Specific gravity of aggregate = 2.64 Fine aggregate passes through the 600 µm sieve = 48% No air entrainment required, ordinary Portland cement to be used. [Use supplied charts and table to get required values]
concrete technology//theory part.
Q1 What moisture condition should the coarse and fine aggregate be in when mixing the concrete? A Unknown B Saturated C Oven Dry D Air Dried E SSD Q2 What restriction is placed on the size of a sample of a concrete batch? A 30 L B 15 L C 20 L D 10 L E 5 L
How will the results of testing aggregates be useful in making concrete?
Laboratory specific gravity and absorption tests are run on two coarse aggregate sizes, which have to be blended. The results are as follows: Aggregate A: Buck specific gravity = 2.395; absorption = 4.69% Aggregate B: Buck specific gravity = 2.601; absorption = 0.51% What is the specific gravity of a mixture of 50]% aggregate A and 50% aggregate B by weight?