00767857

Component

The suitability of crushed clay bricks as coarse aggregate for concrete has been assessed by comparing its basic properties with that of conventional concrete. Four basic mixes were chosen for crushed granite to achieve concrete with grades from 30 MPa to 60 MPa. The equivalent brick-aggregate concrete for each mix was obtained by replacing granite with an equal volume of crushed bricks, everything else remained the same. Test results indicate that brick-aggregate concrete can attain the same compressive strength, gives a higher tensile strength, a lower drying shrinkage, and almost identical specific creep when compared with conventional concrete. However, it exhibits a substantially smaller elastic modulus. Also, the peak stress is reached at a much higher strain. An equation is presented to generate the complete stress-strain curve of brick and granite-aggregate concretes with a good degree of accuracy.

CMS-9796326

English

p. 478-484

1999-7

ACI Materials Journal

Figures (9) ; References (10) ; Tables (3)

Brick; Coarse aggregates; Compressive strength; Concrete; Concrete aggregates; Creep; Crushed aggregates; Deformation curve; Modulus of elasticity; Shrinkage; Stiffness; Tensile strength; Workability

Geotechnology; Highways; Materials; I32: Concrete; I36: Aggregates

TRIS

Sep 1 1999 12:00AM

• BEHAVIOR OF CONCRETE COLUMNS CONFINED WITH FIBER REINFORCED POLYMER TUBES
• BOND STRENGTH OF REINFORCEMENT IN HIGH-PERFORMANCE CONCRETE: ROLE OF SILICA FUME, CASTING POSITION, AND SUPERPLASTICIZER DOSAGE. DISCUSSION
• EFFECT OF ADMIXTURES ON THERMAL AND THERMOMECHANICAL BEHAVIOR OF CEMENT PASTE
• EFFECT OF ALKALI-SILICA REACTION ON TENSILE BOND STRENGTH OF REINFORCEMENT IN CONCRETE TESTED UNDER STATIC AND FATIGUE LOADING
• EFFECT OF CURING CONDITION ON STRENGTH AND ELASTIC MODULUS OF LIGHTWEIGHT HIGH-STRENGTH CONCRETE
• HIGH-PERFORMANCE CEMENT GROUT FOR POST-TENSIONING APPLICATIONS
• INFLUENCE OF CHLORIDE SOLUTION CONCENTRATION ON DEICER SALT SCALING DETERIORATION OF CONCRETE
• SPECIFICATION OF CONCRETE FOR MARINE ENVIRONMENTS: A FRESH APPROACH
• STRESS RELAXATION PHENOMENA AT EARLY TECHNOLOGICAL PHASES OF GAS-CONCRETE
• STUDY OF HIGH-STRENGTH CONCRETES REINFORCED WITH HIGH STRENGTH REINFORCEMENT: STUDY OF BONDING LAWS AND CRACKING IN STATIC SYSTEM
• WATER PERMEABILITY AND AUTOGENOUS HEALING OF CRACKS IN CONCRETE
• WINDSOR PROBE TEST FOR NONDESTRUCTIVE EVALUATION OF NORMAL AND HIGH-STRENGTH CONCRETE