How various properties of aggregates affect workability of concrete? b) If the peak load of concrete cylinder in compression is 70,000 pounds, find the crushing strength of concrete? (Hint: concrete cylinder dia is 6in).

Q: Q/Discuss the statement Why are there three types of failure in the compressive test of concrete? 2…

A: Workability, air content, and maturity are all routine standard testing for new concrete. The most…

Q: Q1/ Find the weights of the materials needed to prepare the concrete cubes to perform the…

A: Part a: Weights of materials required Total Number of cubes = 2*3=6 Volume of each cube =…

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

A:

Q: Discuss the concept of high-performance concrete. Discuss some of its properties that make it…

A: - High performance concrete (HPC) is a type of concrete engineered to be stronger and more robust…

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

A: Solution: Explanation of part A: Given: Ratio of Water/Cement of first concrete=0.45 Ratio of…

Q: Discuss five different desirable characteristics of aggregate used in Portland cement concrete (PCC)

A: Here some of the most desirable characteristics of aggregates used in portland cement concrete are…

Q: Write the functions of all the constituents of cement.

A: 1) Lime(CaO): This is the important ingradient of cement and its proportion is to be carefully…

Q: Situation 1: 6. 7. 8. a. b. It is required to produce 20 m³ of concrete using 1:2.50:5 design mix.…

A: Volume of concrete = 20 m3Design mix = 1 : 2.5 : 5Properties of materials,It is asked to determine…

Q: 1.Plain concrete is formed from hardened mixtures of fine aggregates, coarse aggregates such as…

A: 1.Plain concrete is foamed from hardened mixtures of  CEMENT , Sand   fine aggregates, coarse…

Q: A modulus of rupture test is conducted on an MgO refractory brick with the following data obtained:…

A: Modulus of Rupture is used to calculate the maximum load a material can carry before it breaks. It…

Q: 3) What does the area under the strain stress curve represent and what is the advantage of…

A: Steel is a ductile material which can have many deformations before failure. The concrete is a…

Q: Concrete is strongest when subjected to: OA Tension O B) Bending O9 Torsion

A: 1. The concrete is strongest when subjected to:

Q: After pouring concrete into formwork, :compaction will be required because •compaction can reduce…

A: Compaction is the process of removing air entrapped from the concrete to increase the density,…

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: Two batches of concrete cylinders were made with and without a calciumchloride (CaCl2) accelerator…

A: a) The plot of the relationship between curing time and compressive strength of the two mixes is as…

Q: Sider the following statements: Curing of conerete is necessary because 1. concrete needs more water…

A: Curing of concrete is necessary because 2. it is necessary to protect the water initially mixed in…

Q: A concrete mix includes the following ingredients per cubic meter: Cement%3D400 kg Water=184 kg No…

A:

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…

Q: If the target slump of concrete is 30 mm, the maximum nominal size of the coarse aggregate is 25 mm,…

A: Case-1:Target slump of concrete is 30 mm,Maximum nominal size of the coarse aggregate is 25…

Q: The modulus of elasticity of concrete (Force/Area) is 13 GN/m^2. Determine its US Customary units…

A: Given,  Modulus of elasticity of concrete = 13 GN/m²

Q: calculate the flexural strength of concrete?.

A: Flexural strength could be a measure of the strength of concrete beams or slabs. Flexural strength…

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

A: Explanation-Whenever the nominal maximum aggregate size of coarse aggregate is 25 mm, the maximum…

Q: 11. Calculate the density (in kg/m³) and the compressive strength of the concrete (in MPa or N/mm?)…

A: The given data is: Cubic Sample of 100 mm Weight (kg) Load (kN) 1 2.52 655.8 2 2.59 670.9 3…

Q: Four 150*300 cylindrical specimens were made from a concrete mix. Specimens were tested for 7 days…

A:

Q: What is the fineness modulus of this aggregate?

A:

Q: Two batches of concrete cylinders were made with and without a calcium chloride (CaCl2) accelerator…

A: Given values: Cylinder no: 1 2 3 4 5 6 curing time (days) 1 3 7 14 21 28 Compressive strength…

Q: 20 The figure below shows relative frequency histogram for 50 concrete cubes classified according to…

A: Total number of cubes = 50 Histogram

Q: estimate the water content of the mix estimate the content of aggregates, provide the estimated mix…

A:

Q: Give the conclusion and recommendation of this experiment: DETERMINATION OF SPECIFIC GRAVITY AND…

A: Specific gravity: It is the ratio of weight of a given volume of solids to the weight of water with…

Q: True or false:  Generally speaking, concrete will be priced the same regardless of its designed…

A: The fundamental construction material concrete plays an important role in countless construction…

Q: 2. Students in the materials lab performed the specific gravity test (ASTM c127) on coarse aggregate…

A: Given, Dry weight of the aggregate(w1)= 3862.1g SsD weight(w2)= 3923.4g Sumerged weight(w3)= 2452.1g…

Q: In compressive strength testing of concrete, which type of concrete will give a more accurate…

A: given-100 mm×100 mm cubed concreteand100 mm cylinder concrete

Q: 6. The strength of a fully matured concrete sample is 500 kg/cm². When cured at an average…

A: Given data : →Strength of fully matured concrete =500kgcm2→Curing average  temperature at day and…