English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Portland cement remains the most common type generally used throughout the world as a basic ingredient of concrete. Four brands of Portland cement commonly available in Nigeria were investigated through a series of tests conducted to determine their strength characteristics. The study evaluated different cement brands in the production of interlocking paving stones. This study appraised the engineering properties of four cement brands, Dangote 3X Portland Limestone cement, Dangote Falcon kiwi set Portland Limestone cement, Elephant Portland Limestone cement, and Elephant Supaset Portland Limestone cement using sampling to ensure equal representation of various cement brands. Mix ratio 1:4 was used to produce the interlocks and tests such as flexural strength and compressive strength were conducted on 7, 14, 21 and 28days. The flexural strength was conducted following IS 15658:2006 and the result ranges from 1.79 – 4.48N/mm 2 . Comparing the results of different brands of cement suggests recommended cement brands to be used in producing interlocks for Residential pathway/public pedestrian path, Residential driveways (light vehicles, commercial vehicles). The compressive strength result for the mix ratio 1:4 ranges from 5.44-15.91N/mm 2  and Dangote Falcon had the highest compressive strengths of 15.27N/mm2 and 15.91N/mm 2  a 28 and 21 days respectively indicating that it is stronger than other cement brands in the production of interlocking stones. Dangote Falcon and Elephant Supaset are recommended to produce interlocking paving stone on higher compressive and flexural strength.

Strength evaluation of different cement brands in the production of inter locking paving stones