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Titre du document / Document title

Effect of insoluble residue on properties of Portland cement

Auteur(s) / Author(s)

KIATTIKOMOL Kraiwood (1) ; JATURAPITAKKUL Chai (1) ; TANGPAGASIT Jatuphon (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Civil Engineering, King Mongkut's University of Technology Thonburi, Bangmod, Tungkru, Bangkok 10140, THAILANDE

Résumé / Abstract

Insoluble residue is a non-cementing material which is present in Portland cement. This residue material affects the properties of cement, especially its compressive strength. To control the non-cementing material in Portland cement, ASTM standard allows the insoluble residue to be not higher than 0.75%. This limitation is much lower than the allowance provided by the British standard which is 1.5%. To verify the effect of insoluble residue on the properties of Portland cement, artificial insoluble residue was prepared and replaced in Portland cement type I. Finely crushed sand was extracted to represent artificial insoluble residue. Setting times and compressive strengths of cement mortar mixed with insoluble residue were investigated. The Portland cement was replaced by insoluble residue which varied in amounts of 0%, 0.5%, 1.0%, 1.5%, 2.0%, 3.0%, 5.0% and 7.0% by weight. The results showed that the addition of the insoluble residue from 0.0% to 7.0% by weight in Portland cement did not affect the normal consistency or setting times of cement. However, the compressive strength of cement mortar was affected during the early age, but the figure reduced as the cement mortar was older. With 7.28% of insoluble residue in the mortar at 1 day, the compressive strength was reduced by 11.5%, but after 60 days, the strength of the same mortar was only reduced by 5.5% as compared to the control mortar. It was also found that the compressive strength of Portland cement mortar with insoluble residue provided by ASTM standard or British standard was still higher than the compressive strength of Portland cement mortar type I allowed by the standards. The limit of insoluble residue given by ASTM standard as 0.75 is rather low and can possibly be increased to 1.5% according to British standard, or even slightly higher, without significantly reducing the compressive strength of cement.

Revue / Journal Title

Cement and concrete research    ISSN  0008-8846   CODEN CCNRAI 

Source / Source

2000, vol. 30, no8, pp. 1209-1214 (9 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1971) (Revue)

Mots-clés anglais / English Keywords

Portland cement

;

Insoluble compound

;

Residue

;

Experimental study

;

Compressive strength

;

Aggregate(materials)

;

Concrete mix design

;

Mortar

;

Setting time

;

Chemical composition

;

X ray diffraction

;

Particle size distribution

;

Scanning electron microscopy

;

Property composition relationship

;

Mots-clés français / French Keywords

Ciment Portland

;

Composé non soluble

;

Résidu

;

Etude expérimentale

;

Résistance compression

;

Granulat

;

Formulation béton

;

Mortier

;

Temps prise

;

Composition chimique

;

Diffraction RX

;

Distribution dimension particule

;

Microscopie électronique balayage

;

Relation composition propriété

;

Mots-clés espagnols / Spanish Keywords

Cemento Portland

;

Compuesto no soluble

;

Resíduo

;

Estudio experimental

;

Resistencia compresión

;

Agregado

;

Formulación hormigón

;

Mortero

;

Tiempo fraguado

;

Composición química

;

Difracción RX

;

Distribución dimensión partícula

;

Microscopía electrónica barrido

;

Relación composición propiedad

;

Localisation / Location

INIST-CNRS, Cote INIST : 15266, 35400009280158.0040

Nº notice refdoc (ud4) : 804635



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