BTEB Masonry case studies

BTEB Masonry · Put your knowledge to work in context.

The Bangladesh Technical Education Board (BTEB) is the government body that oversees technical and vocational education in Bangladesh, and its website is the official portal for notices, results, curricula and examination rules. A "BTEB Masonry" credential refers to the masonry trade within BTEB's technical and vocational programmes - the trade theory and practical skills of brick and block work, mortar, setting out, bonding and finishing. The BTEB Masonry case studies are 5 cases and about 2,324 words.

Wall Tie Spacing on a Cavity Wall with a Wide Leaf Gap

You are laying a 102.5 mm outer leaf of facing brick against a 100 mm inner blockwork leaf. The cavity was specified as 50 mm, but on site the inner leaf is set back further than drawn, and your string line plus a straightedge show the actual clear cavity is a uniform 75 mm at the base and 80 mm at the top of the first lift.

530 words, about 3 min 2

Mortar Stiffening in a Hot Wind and the Effect on Bond

It is a dry, breezy afternoon with the temperature at 29 °C and a steady wind across an exposed site. You are laying a stretcher-bond wall of 65 mm bricks with a 10 mm joint, using a 1:1:6 cement–lime–sand mortar mixed that morning.

463 words, about 2 min 3

Setting Out a Return Corner When the Diagonals Do Not Agree

You are setting out a rectangular single-storey extension, 6.4 m by 4.2 m externally, on a concrete raft. You strike the first long line along the existing building and square off the first corner with a 3-4-5 triangle.

418 words, about 2 min 4

Damp Proof Course Level Against a Door Threshold

You are building the external leaf of a cavity wall to a garage conversion. The drawings show a dpc at 150 mm above external ground level, a door opening with a 100 mm deep pre-cast threshold, and a finished floor level 150 mm above external ground.

492 words, about 2 min 5

Movement Joint Omission in a Long Garden Wall

You are building a free-standing garden wall, 22 m long, 1.8 m high, one brick thick (215 mm), in stretcher bond with a cement–lime mortar. The drawing shows movement joints at 12 m centres, but the setting-out on site means a joint would fall in the middle of a decorative pier, so the foreman tells you to leave it out and 'just build through'.

421 words, about 2 min