concrete aggregates question

Concrete Mixing Ratios - How To Make Concrete (Cement ...

Concrete Technology Questions :-1. Concrete grows with age. This statement is (a) true (b) false (c) debatable (d) given by Duff Abrams. 2. Concrete in the structural member has to pass through (a) plastic stage (b) hardened stage (c) both (a) and (b) above (d) neither (a) nor (b) 3. Separation of the coarse aggregate from mortar is called (a ...

Concrete Mix Question - Civil Engineering PE Exam ...

Functions of Aggregates in Concrete. The aggregate give volume to the concrete around the surface of which the binding material adheres in the form of a thin film. In theory the voids in the coarse aggregate is filled up with fine aggregate and again the voids in the fine aggregate is filled up with the binding materials.

300+ TOP Concrete Technology Questions and Answers 2020

May 31, 2013· {Question} Why should I care about the moisture condition of my aggregates when I'm manufacturing concrete? I design my mixture with aggregates in the saturated surface-dry (SSD) condition. {Answer} The moisture condition of aggregates in concrete is very important. We are all familiar with Abrams Law, which states that, all other things ...

Aggregates, Concrete & Asphalt Q&A - Aggregate Research

250+ Concrete Technology Interview Questions and Answers, Question1: What are all the types of cement? Question2: Differentiate dry process and wet process of manufacturing cement? Question3: Define batching, what are all the methods of batching? Question4: What are all the raw materials of the cement? Question5: Write notes on steam curing?

Frequently Asked Questions | Liberty Ready Mix Concrete

Question is ⇒ For given water content, workability decreases if the concrete aggregates contain an excess of., Options are ⇒ (A) thin particles, (B) flat particles, (C) elongated particles, (D) all the above., (E), Leave your comments or Download question paper.

Concrete Mix Design Just Got Easier | Giatec Scientific Inc.

Aggregates are inert granular materials such as sand, gravel, or crushed stone that, along with water and portland cement, are an essential ingredient in concrete. For a good concrete mix, aggregates need to be clean, hard, strong particles free of absorbed chemicals or coatings of clay and other fine materials that could cause the ...

Study on Tests Fine and Coarse Aggregate Engineering ...

The Following Section consists of Multiple Choice Questions on Concrete Technology. Choose the correct answer from the following MCQ.

Concrete Technology Objective Questions with Answers pdf ...

Aug 17, 2019· Coarse aggregate is one of the essential components of concrete and occupies the largest volume in the mix. That is why it greatly affects the concrete mix design. Its properties such as strength, maximum size, shape, and water absorption influence water demand, the quantity of cement and fine aggregate in concrete mixture. It is reported […]

10 Questions to Ask a Concrete Contractor | Port Aggregates

Multiple Choice Questions on Concrete Technology - Set 07 MCQ Concrete Technology Edit Practice Test: Question Set - 07. 1. Finer grinding of cement ... The aggregate impact value of the aggregate used in (A) Building concrete is less than 45 (B) Road pavement concrete is less than 30 (C) Runway concrete is less than 30 (D) All the above ...

Concrete Technology Objective Questions with Answers pdf ...

20. Size of Concrete Cubes? 21. What is the standard w/c value for nominal mix of concrete? 22. Density of Concrete? 23. No. of Cube samples required for testing Compressive Strength for 100 m3 of concrete? 24. List out Shape Tests on Coarse Aggregate? 25. Aggregate Impact value of material A is 15 and that of B is 35.

Concrete Petrography Testing Lab, Petrographic Examination ...

Aggregate makes the concrete stronger and cheaper. NAME__KEY_____ CONCRETE QUIZ 2. What can be used to slow the hardening of concrete (give example?) Why would slowing this process be desirable? Sugar can be added to the concrete to retard hardening. For example, if the concrete needs to be transported a long distance, then a retarding ...

Concrete Is Made Of Cement, Water And Aggregates Y ...

Recycled concrete aggregate (RCA) is generally produced by two-stage crushing of demolished concrete, and screening and removal of contaminants such as reinforcement, paper, wood, plastics and gypsum. Concrete made with such recycled concrete aggregate is called recycled aggregate concrete (RAC). The main purpose of this work is to determine

Aggregates - Portland Cement Association

Oct 03, 2020· Sorry for the long answer, your question of the method of scientific comparison of construction materials or solutions is very important and of great interest. View 3 Recommendations

TOP 250+ Concrete Technology Interview Questions and ...

Aggregates are inert granular materials such as sand, gravel, or crushed stone that, along with water and portland cement, are an essential ingredient in concrete. For a good concrete mix, aggregates need to be clean, hard, strong particles free of absorbed chemicals or coatings of clay and other fine materials that could cause the ...

Top 6 Important Quality Tests Of Concrete

A concrete mix is a combination of five major elements in various proportions: cement, water, coarse aggregates, fine aggregates (i.e. sand), and air. Additional elements such as pozzolanic materials and chemical admixtures can also be incorporated into the mix to give it certain desirable properties.

Question is ⇒ For given water content, workability ...

Segregation of concrete is the separation of cement paste and aggregates of concrete from each other during handling and placement. Segregation also occurs due to over-vibration or compaction of concrete, in which cement paste comes to the top and aggregates settles at the bottom.

CONCRETE BASICS A Guide to Concrete Practice

Question: Moving To The Next Que Question 2 Concrete Is Made Of Cement, Water And Aggregates. You Use One Bag Of Cement To Produce A Batch Of Concrete. One Third Of Your Comert Is Old, And You Don't Know Which Bags Have Ald Cement. The Concrete You Make Can Be Either Weak Or Strong.

Aggregates - Portland Cement Association

What is the ratio for mixing concrete? One of the best concrete mix ratios is 1 part cement, 3 parts sand, and 3 parts aggregate, this will produce approximately a 3000 psi concrete mix. The strength of this mix ratio is good for most concrete slabs, footings, steps, and foundation walls.

Concrete Technology, Lectures & Course Notes on Concrete ...

Answers for Your Concrete Questions . What is ready mix concrete made of? Ready mix concrete is a combination of aggregates (sand and rock) and a paste made out of cement and water. This paste coats the surface of fine and coarse aggregates, binding them together to form concrete. How is ready mix concrete sold per cubic yard? Ready-mixed ...

Multiple Choice Questions on Concrete Technology ...

Apr 12, 2017· Ive been going through the Lindeburg practice problems and I came across a problem that I dont know know to solve (or even which reference to use to help me figure it out). Heres the problem: A given prozzolan contains approximately 20% calcium oxide and …

Reinforced Concrete Practice Test 1 - ProProfs Quiz

Concrete Technology Objective Questions with Answers pdf - Set 17 ... According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D ...

7 Lab Tests on Aggregates to Make Better Concrete for ...

Civil Concrete Technology Lectures Notes Concrete Definition In its simplest form, concrete is a mixture of paste and aggregates (rocks). The paste, composed essentially of portland cement and water, coats the surface of the fine (small) and coarse (larger) aggregates. Through a series of chemical reactions called hydration, the paste hardens and gains strength to form the rock-like mass known ...

What nominal maximum sizes of aggregate are recommended?

Concrete Technology Objective Questions with Answers pdf - Set 17 ... According to Water-Cement Ratio Law, the strength of workable plastic concrete (A) Depends upon the amount of water used in the mix (B) Does not depend upon the quality of cement mixed with aggregates (C) Does not depend upon the quantity of cement mixed with aggregates (D ...