KNEC Building Construction Module 2: Key Revision Topics & Exam Breakdown

A complete overview of KNEC Building Construction Module 2, covering sub-structures, super-structures, masonry, concrete technology, and site management.

Overview of Building Construction Module 2

Building Construction Module 2 advances from introductory concepts into structural systems, reinforced concrete, masonry works, staircase design, roof trusses, and site supervision.

Foundations and Sub-Structure Works

Understand soil mechanics and foundation selection based on bearing capacity:
– **Strip Foundations:** Suitable for low-rise residential load-bearing walls.
– **Pad Foundations:** Designed to support isolated point loads from reinforced concrete columns.
– **Raft Foundations:** Used on low-bearing soils to distribute building loads across the entire footprint.

Concrete Technology and Quality Control

Examiners frequently ask questions regarding water-cement ratio, workability tests (Slump test and Compacting Factor test), curing methods, and batching by weight vs. volume. Understand characteristic compressive strength tests using standard 150mm concrete cubes.

Roof Construction & Trusses

Be prepared to sketch and label parts of timber and steel roof trusses: tie beam, rafters, king post, queen post, struts, purlins, wall plates, and fascia boards.