The thickness of the mortar should not be more than 10 mm between the courses and sides of the bricks. In this article, I will discuss how to calculate bricks, cement, and sand in brick masonry. (9.5 mm) mortar joints. 3.3.F Site tolerances indicates that the bed joints between courses may vary by +/- 1/8" (3.2mm). A generally used modular brick is 7 5 /8 × 3 5 × 8 × 2 1/ inches (194 × 92 × 57 inches). The higher the density and the strength, the better they will be. The thickness of the mortar can vary in other types of structures from 1/8 inch to ¾ inch, according to the MC2 Estimator's Reference website. A neighbour suggested that this is too thick (60mm) for mortar to take weight and it may crush, suggesting that I ought to use slithers of block or brick in the mortar so that I dont end up with a thick mortar joint on its own. Ensure you are using good quality of cement and sand. Assuming, 1- Volume of brickwork = 1 m 3. Step 1:- Adding mortar thickness to brick. 12 MM thick cement plaster is done where the plain surface of brick masonry is plastered. Recommended thickness of plastering for brick walls is 12 MM, 15 MM or 20 MM. The more commonly used is the modular brick 7 5⁄8 × 3 5⁄8 × 2 1⁄4 inches (194 × 92 × 57 mm). The mortar thickness of the masonry was considered as variable parameter by considering 12 mm and 18 mm thickness in addition to strength of brick units and mortar mixes. This gives a ratio of 3:2:1, meaning that: 1. Note: The primary goal of these mandatory rules of thumb (MRT) in Nepal’s Nationwide Construction Code is to offer ready to use dimensions. Brickwork should be done for 1 meter or 3 feet height at a time. 1/4 - in. Recommended thickness of plastering for brick walls is 12 MM, 15 MM or 20 MM. What is the thickness of wall? With mortar thickness, the dimension of the brick becomes 200 mm x 100 mm x 100 mm which is also known as the nominal size of the modular brick. home - ; face brick - ; Brick Dimensions Guide; BRICK DIMENSIONS GUIDE. With a 10 mm mortar joint thickness, the size adds up 200 mm x 100 mm x 100 mm. Larger bricks are often used for more economical laying and as a design feature either on their own or combined with smaller bricks. Standard Brick sizes in the United States: In the US, modern normal bricks (controlled by the American Society for Testing and Materials i.e. Cheers C. (6.4 mm), except: a. (12.7 mm) horizontal mortar joints. No. In the United Kingdom, the usual size of a modern brick is 215 × 102.5 × 65 mm (about 8 5⁄8 × 4 1⁄8 × 2 5⁄8 inches), which, with a nominal 10 mm (3⁄8 inch) mortar joint, forms a unit size of 225 × 112.5 × 75 mm (9 × 4 1⁄2 × 3 inches), for a ratio of 6:3:2.” – Wikipedia, “In the United States, modern standard bricks are (controlled by American Society for Testing and Materials i.e. With a standard mortar joint of 10 mm, a repeating unit of bricks laid in a stretcher bond will be 225 mm lengthwise and 75 mm in height. With the thickness of the mortar, the dimension of the brick turns into 200 mm x 100 mm x 100 mm which is often known as the nominal size of a minor brick. b. In the table below, we have given the standard sizes of different brick as follows: In UK, the size and width of common brick had remained constant over the centuries, however, the depth is greater than about two inches (about 51 mm) or smaller than two and a half inches (about 64 mm). If you choose a half brick laying, then the ceiling thickness will be 120 mm, one brick - 259 mm, two bricks - 510 mm (in addition to the blocks, 10 mm of cement mortar, which fills the layers) and 2.5 bricks - 640 mm. Some bricks are made with different work sizes. Moreover, the thickness of masonry wall need to be increased by 101.6 mm (4in.) b. Mortar Joints 9.20.4.1. the height of each course in case of a brick size 230x110x75 mm, this is 110 mm plus mortar thickness) such that the shinner and rowlock are visible on the face of masonry as shown in the figure. Hi.. Genrally for tile flooring cement -mortor ratio varies from 1:5 to 1:9 for 50mm thickness. The thickness of clay/earth mortar is 12 mm and the maximum height of building constructed with clay is restricted to 2.5 m. 2. The thickness of the mortar can vary in other types of structures from 1/8 inch to ¾ inch, according to the MC2 Estimator's Reference website. Estimate Brickwork (V): Let’s assume V=1 m³ In the top course of brickwork, frog should be laid downward. The Larger (140 mm large x 90 mm high x 290 mm long) hollow bricks are used in cyclonic areas to permit reinforcement and grating within the wall. According to Boral Company in Australia, the standard brick size (or the working size) is 76mm high, 230mm long and 110mm wide as per the Australian Standard AS4455. Various countries have various standard brick size and dimensions, however, brick can be made in multiple shapes and sizes, depending on its application. Wider (150 mm large) bricks will also be used in walls requiring low sound transmission, excessive fire resistance levels and high load carrying capability, relying on the particular sound properties. (203 × 92 × 57 mm). Bricks that are not standardized are known as traditional bricks and along with the thickness of the mortar, it is known as the nominal size of the brick. ASTM) about 8 × 3 5⁄8 × 2 1⁄4 inches (203 × 92 × 57 mm). (i.e. Bricks should be laid with frogs upwards except in the top brick layer. Mortar joints should not exceed 6 mm or 0.5 inch in thickness. The description of various structural and non-structural parts for three-story reinforced concrete (RC), simple residential building, built by proprietors in Nepal. BrickWork Calculation & best automatic calculator to find quantity of bricks with or without mortar and you can also add thickness of RCC bed if required in calculation. of bricks required for 1 cubic meter, No. Copyright © 2020 | Powered by Civil Engineering Blog, Top Civil Engineering Schools, Universities. He also suggested possibly using firebrick type block which are not too thick. This includes 10 mm mortar joints, and so the standard size for a brick itself is 215 mm x 102.5 mm x 65 mm (length x depth x height). A rat-trap bond is a type of wall brick masonry bond in which edge is used to leading the brick, not in the center. To choose the type of brickwork, you should consider the conditions of the building design. Learn how many bricks you need with this easy to use calculator that allows you to specifiy brick size and mortar margin. Wider (150 mm wide) bricks can also be used in walls requiring lower sound transmission, higher fire resistance levels and higher load bearing capacity depending on the specific brick properties. 5. Note: The main objective of these Mandatory Rules of Thumb (MRT) in National Building Code of Nepal are to provide ready-to-use dimensions and details for various structural and non-structural elements for up to three-storey reinforced concrete (RC), framed, ordinary residential buildings commonly being built by owner-builders in Nepal. 2- Grade of mortar = 1:6 (cement : sand) 3- First class brick (190 mm x 90 mm x 90 mm) 4- Thickness of mortar = 10 mm = 0.01 m. 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