Characterization of alkali-activated nonwood biomass ash-based geopolymer concrete

Faris Matalkah, Parviz Soroushian, Anagi Balchandra, Amirpasha Peyvandi

Research output: Contribution to journalArticle

Abstract

The combustion ash of a common nonwood biomass (wheat straw) was evaluated for value-added use in production of geopolymer concrete where alkali aluminosilicate hydrates are the primary binder constituents. The wheat straw ash was supplemented with other raw materials in order to achieve a desired chemical balance. The binder composition that performed well in experimental work comprised wheat straw ash:coal fly ash:metakaolin:gypsum at 0.50:0.25:0.25:0.05 weight ratios. The wheat straw ash-based concrete as well as a control portland cement concrete were subjected to a comprehensive experimental investigation. The workability, set time, compressive strength, residual compressive strength after immersion in boiling water, flexural strength, density, moisture absorption, voids content, capillary sorptivity, and acid and fire resistance of concrete materials were evaluated. The experimental results indicated that the nonwood biomass ash-based geopolymer concrete materials with proper binder formulation can provide desired mechanical attributes, moisture barrier qualities, durability, and fire resistance when compared with normal portland cement concrete.

LanguageEnglish (US)
Article number04016270
JournalJournal of Materials in Civil Engineering
Volume29
Issue number4
DOIs
StatePublished - Apr 1 2017

Profile

Ashes
Geopolymers
Alkalies
Biomass
Straw
Concretes
Coal Ash
Binders
Fire resistance
Portland cement
Compressive strength
Moisture
Acid resistance
Calcium Sulfate
Aluminosilicates
Gypsum
Hydrates
Fly ash
Bending strength
Boiling liquids

Keywords

  • Acid resistance
  • Combustion ash
  • Durability
  • Fire resistance
  • Geopolymer concrete
  • Nonwood biomass
  • Sorptivity
  • Strength

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)
  • Mechanics of Materials

Cite this

Characterization of alkali-activated nonwood biomass ash-based geopolymer concrete. / Matalkah, Faris; Soroushian, Parviz; Balchandra, Anagi; Peyvandi, Amirpasha.

In: Journal of Materials in Civil Engineering, Vol. 29, No. 4, 04016270, 01.04.2017.

Research output: Contribution to journalArticle

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