Use of incinerator ash as a replacement for cement and sand in cement mortars

Amer Ali Al-Rawas, Abdel Wahid Hago, Ramzi Taha, Khalid Al-Kharousi

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Incinerator ash was investigated for its potential use as a replacement for sand and cement in cement mortars. The physical and chemical characteristics of the raw materials were determined. Two sets of mixes were prepared. For the first set, cement and water quantities were fixed while incinerator ash was used at 0%, 10%, 20%, 30% and 40% replacement by weight for sand. In the second set, incinerator ash was used at 0%, 10%, 20% and 30% replacement by weight for cement while sand and water quantities were kept constant. The cement, sand and water mixing proportions were 1:3:0.7, respectively. Slump, compressive strength and unit weight tests were performed on all specimens. Results indicate that incinerator ash caused a reduction in slump values when it was used as a replacement for sand while an opposite trend was observed when it was used as a replacement for cement. The replacement of sand by incinerator ash up to 40% exhibited a higher compressive strength than the control mix (0% incinerator ash) for most curing periods. The maximum compressive strength of 36.4 N/mm2 was achieved using 20% incinerator ash after 28 days of curing. Specimens prepared using 20% incinerator ash replacement for cement yielded a higher compressive strength than the control mix after 14 and 28 days of curing. The maximum compressive strength of 27.4N/mm2 was achieved at 28 days curing period.

Original languageEnglish
Pages (from-to)1261-1266
Number of pages6
JournalBuilding and Environment
Volume40
Issue number9
DOIs
Publication statusPublished - Sep 2005

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Ashes
Refuse incinerators
mortar
Mortar
Cements
cement
ash
Sand
replacement
water
compressive strength
sand
Compressive strength
Curing
raw materials
trend
Water
incinerator
Values
Raw materials

ASJC Scopus subject areas

  • Environmental Engineering
  • Geography, Planning and Development
  • Civil and Structural Engineering
  • Building and Construction

Cite this

Use of incinerator ash as a replacement for cement and sand in cement mortars. / Al-Rawas, Amer Ali; Hago, Abdel Wahid; Taha, Ramzi; Al-Kharousi, Khalid.

In: Building and Environment, Vol. 40, No. 9, 09.2005, p. 1261-1266.

Research output: Contribution to journalArticle

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