Samples of perforated brick (7x11x23) cm have been tested for compression and the results are as follow: Failure |(kN): 455, 430, 405, 480, 380, 470, 380, 420 ,455, 480, 555 Absorption (%): 22, 24, 23, 22, 26, 21, 20, 20, 21, 24 Efflorescence: Light for all specimens What is the grade of this brick & can be used in foundation according to ISS?

Q: Which type of aggregate is more harmful for using in concrete?     Angular     Rounded…

A: Aggregate is generally referred to as a reinforcement to add strength to composite materials such as…

Q: What is the minimum strength that concrete must reach prior to freezing so that the overall strength…

A: The minimum strength that concrete mus overall strength gain is not affected:

Q: After concreting is completed, your project manager raises concern about the quality of the concrete…

A:

Q: choose the correct option please Silica fume admixture increase concrete strength up to  60 MPa  120…

A: This question is related to Concrete technology from Civil Engineering. In this question ask about…

Q: We require a mix with a mean 28-day compressive strength of 26.5 MPa) the size of the member and the…

A: Given DataThe spacing between reinforcing steel = 50 mmThe compressive strength concrete at 28 days…

Q: Three standard mortar cubes were made using nonpotable water available atthe job site, and three…

A: Calculating the average compressive strength of the non-potable water sample:

Q: The maximum applied load on cylindrical diameter 150 mm and length 300 mm a concrete specimen of…

A: Given: The diameter is 150 mm. The length is 300 mm. The applied load is 157 kN.

Q: 1. (a) The data presented below is compiled to obtain the modulus of rupture values of the MgO…

A:

Q: Sample ID NazSO4 solution (%) MGSO4 solution (%) Na2SO4+M9SO4 solution (%) ОРС -30 -21 -35 OPC÷FA…

A:

Q: Cylinders which have been subjected only to field curing conditions prior to testing may be used to…

A: The given statement is: Cylinders which have been subjected only to field curing conditions prior to…

Q: Three 100*200 mm cylindrical concrete specimens were tested for 28 days compressive strength and…

A: Given data: Compressive strength of the test specimens after 28 days fc1=30.5 MPafc2=29.6…

Q: We require a mix with a mean 28-day compressive strength of 26.5 MPa) the size of the member and the…

A:

Q: Design the concrete mix according to the following conditions: het Design Environment Pavement slab,…

A: Given, Design strength (f'c) = 5000 psi  Admixture dose = 0.15 fl oz/1% air/100 lb

Q: A concrete masonry unit was tested according to ASTM C140 procedure and produce the following…

A:

Q: Increasing the amount of sand in a concrete usually decreases the amount of water needed to make the…

A: Thank you for the question . As per honour code we are allowed to answer three sub parts at a time…

Q: 6.38 What is the source of fly ash? Why is fly ash sometimes added to concrete? What are the…

A: Given : fly ash  To  determine : 1)source of fly ash  2)Why added in concrete  3)Different class of…

Q: Three standard mortar cubes were made using nonpotable water available at the job site, and three…

A: Given:- 3 standard mortar cubes set time=45min To find:- accept water for mixing

Masonry Units

Concrete masonry is among the most surplus building materials present since a wide range of aspects can be accomplished using Concrete Masonry Units (CMU) as they have more benefits than stone or brick masonry. CMU are manufactured in a variety of shapes, colors, sizes, and patterns for various functions and finishing. Due to their modular properties, different CMU can be mixed in the same wall for various textures, colors, and so on. For the formation of the concrete blocks, cement, aggregate, and water are required.