Journal of
Civil Engineering and Construction Technology

  • Abbreviation: J. Civ. Eng. Constr. Technol.
  • Language: English
  • ISSN: 2141-2634
  • DOI: 10.5897/JCECT
  • Start Year: 2010
  • Published Articles: 139

Article in Press

Evaluation of compressive strength of Sand Crete blocks containing termitarium clay

Gitu I. Bassey, Jerome G.Egbe Stansley E. Ubi

  •  Received: 06 April 2019
  •  Accepted: 30 January 2020
The research was carried out to investigate and compare the equivalent strength replacement of manually compacted blocks using varying percentage replacement for sand with termitarium silty fine ranging from 0%, 6%, 12%, 18%, 24%, 30%, and 36%. The termitaruim silty clay was collected from a different depth of 5 cm and above in Calabar, Cross River State, Nigeria. A mix ratio of 1: 6: 0.55 was adopted via batching by weighing for the research. 450 x 255 x 150 mm hollow block mold was used in molding the blocks manually. A total of fifty-six (56) blocks samples were molded with different percentage replacement of sand with termitarium silty fine ranging from 0%, 6%, 12%, 18%, 24%, 30%, and 36 %. The blocks were cured manually through spraying of water for 7, 14, 21, and 28 days respectively. The result revealed that at the 28th-day compressive strength test of the block in N/mm2 was 2.07 and the lowest strength of individual block at 28th day’s compressive strength test in N/mm2 was 1.41N/mm2. The result indicates that the termitarium silty fine used as a partial replacement for sand could satisfactorily replace sand up to 10% at 28 days of 2.07 N/mm2 as compressive strength. From the test result conducted on the research material, it indicated that the termitarium silty fine can harmonize a project work effectively and can also be used as subgrade material.

Keywords: Block works, CBR test, manual compaction, Termitarium, Silty fine