What types of plaster coats are applied over metal lath?

Q: Understand the many types of concrete admixtures and how they affect the concrete.

A: Introduction: Producers firstly use admixtures to lower the cost of concrete construction, adjust…

Q: Explain the effects of Silica during brick manufacturing process?

A: The major constituents used in the manufacturing process of bricks are Alumina, Silica, Lime, Iron…

Q: What do MWF and MDF mean when used in coating specifications?

A: To define MWF, First (MWF) it is elaborated as Minimum thickness of Wet Film ( Paint Coating ),…

Q: Discuss the finishes used on concrete surfaces.

A: Every structural component in the structure must require the finish to protect from external factors…

Q: How to determine the porosity of broken brick pieces?

A: measure the dry weight of brick bats.To determine the porosity, first we have to determine the water…

Q: What are the ingredients of the plaster? What is it used for?

A: The ingredients of the plaster are given below: Clay Lime Sand Animal hair Cement Mud Water

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

A: The main source of Fly ash is coal as produced as a by-product from the coal industry. The burning…

Q: What are the different ways concrete masonry units are cured?

A: There are two basic ways of curing concrete masonary - 1) using low pressure steam kiln 2) by…

Q: What justifies the need for plenumrated cabling above ceiling tiles

A: plenum-rated cables are those cables whose outer coating is fire resistant, which helps in…

Q: 2) What are lime pops? How are they formed? How do lime pops affect mortar properties?

A: Lime in soil is present in the form of ground limestone rock, which naturally contains calcium…

Q: Define purpose of adding cooling pipes or even using cold water for concrete in concreting…

A: All these measures aim at reducing the placing temperature and reducing thermal cracks induced…

Q: Distinguish between hardening and setting?

A: Brief concept introduction- Hardening and setting are the terms related to the cement.

Q: How can you keep prepared mortar from having excessive moisture loss?

A: Preparation of mortar having excessive moisture loss:

Q: 7. The Iraqi standard No. 25/1988 classification of bricks is based on (i) compressive strength (ii)…

A: Given data  Compressive strength  Water absorption  Efflorescense

Q: Identify the level of exposure defined: Indoor or outdoor service in which concrete is not exposed…

A: Answer Level of Exposure for Indoor or outdoor service in which concrete is not exposed to freezing…

Q: Explain the Best chemicals used for waterproofing concrete?

A: Water has permeable properties; so no building is safe from the permeability of water in the short…

Q: How Dry-laid-nonwoven fabrics are manufactured?

A: Dry-laid Nonwoven Fabric Manufacturing Process:

Q: What is adhesive strength testing?

A: Adhesive strength test:

Q: Briefly describe the following i. Dressing of stone ii. Importance of 'frog' in clay bricks iii.…

A: (i) Dressing of stone: The process to convert the quarried stone into the required and useful shape…

Q: How does acoustical plaster differ from standard gypsum plaster?

A: Acoustical plaster : Acoustic plaster is plaster which contains fibers or aggregates so that it…

Q: What is the difference between cedar shingles and cedar shakes?

A: Difference Between Cedar Shingles and Cedar Shakes :  1. Appearance – Cedar shingles have a smooth…

Q: What are the organisms that degrade wood ?

A: Answer Degrade of wood is the decomposition of wood by the organism.

Q: From what materials are cements made?

A: Solution: The most important raw materials from which  cement is made are 1. Limestone 2. Clay 3.…

Q: Write three items that must be done during brick manufacturing to prevent their cracking.

A: Brick is one of the major construction material. Since from the very old time and it is mainly use…

Q: What are the types of mortar used in the United States and Canada?

A: The type of mortar used in united state are M,S,N and O. It is specified by ASTM C270 M is high…

Q: What is the mortar made of? What are the functions of the mortar?

A: Mortar is simply a material of filler between the joints and bricks and used for wall plastering. In…

Q: List rarely used concrete additives and give specific areas to be used. (Other than water reducers,…

A: Few rarely used chemical admixtures are listed below and usage is also given : 1) Air entraining…

Q: When is the Concrete susceptible to cracking?

A: Concept: Complete/incomplete separation of concrete into two or more parts as a result of fracturing…

Q: Why is space filled with grout in this image necessary? Column Bar Plate Top Nut Grout Bottom Nut…

A: We know that grouting is generally used to fill the voids or  space between the two surfaces so that…

Q: 2. What is the mortar made of? What are the functions of the mortar? 3. What is the grout? What is…

A:

Q: Describe the following terminologies in injection molding: (1) gate, (2) weldline and (3) sink marks…

A: Explanation- Choosing the right gate is an important part of mould design. The purpose of the gate…

Q: A. Why gypsum is added to the Portland cement? and what is the normal percentage of gypsum to be…

A: Addition of gypsum to portland cement.

Q: What are the functions of mortar?

A: Mortar: Mortar is a material used in masonry construction to fill the gaps between the bricks and…

Q: Explain the porosity of the bricks

A: The porosity of bricks, permeability of brick, and absorption are very essential factors that can…

Q: Why tempering, water absorption are important for brick manufacturing process

A: Brick is one of the major construction materials. Since from the very old time in construction brick…

Q: Explain the resistance of the bricks

A: The resistance of Bricks is the property of Bricks That give resistance against weather  condition,…

Q: What are the benefits of adding dispersed steel fibers to plain concrete?

A: Steel fibers are one of the supplementary constituents of steel fiber reinforced concrete, which is…

Q: A hollow concrete masonry unit has an actual gross dimension of 150mm x 200mm x 400mm (width x…

A:

Q: 7. The Iraqi standard No. 25/1988 classification of bricks is based on (i) compressive strength (ii)…

A: