July 2017

Strength performance of silicate limestone compressed Bricks

This research work investigates and evaluates the effects of varying lime composition on the compressive and flexural strength of compressed silicate limestone bricks and compares the results to the local blocks and bricks used in the Kenya market. The mix ratio used to make limestone bricks was binder (cement replaced with hydrated lime powder), sand and water cement in ratio of 1:5:0.4. The results showed that an...

Author(s): Leolein Rostand Deffo Deffo, Raphael Ndisya Mutuku and Timothy Nyomboi

July 2017

Study of brick mortar using sawdust as partial replacement for sand

The paper reports results of study on standard masonry mortar containing sand and sawdust as aggregates in a mix proportion of 1:3 and water-cement ratio of 0.55. A modified mortar of same design mix proportion (1:3) but varying water/cement ratio and constant slump of 74.3 mm to achieve higher workability was also evaluated. Six different percentages (5, 10, 15, 20, 30 and 50%) of sand replacement were investigated....

Author(s): Jonathan Sasah and Charles K. Kankam