Effect of the Pozzolit active mineral admixture on the properties of cement mortars and concretes. Part 1: Physical and mechanical properties

Journal Article · Mon Jul 01 04:00:00 EDT 1996 · Cement and Concrete Research

DOI:https://doi.org/10.1016/0008-8846(96)00081-6· OSTI ID:367791

Stoitchkov, V; Abadjiev, P; Vasileva, V ^[1]; Lilkov, V ^[2]

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1. Building Research Inst., Sofia (Bulgaria)
2. Univ. on Mining and Geology, Sofia (Bulgaria)

The results from investigations on the physical and mechanical properties of cement mortars and concretes containing the active mineral Pozzolit admixture are presented in this paper. The basic components of this admixture are silica fume (SF) and low calcium content fly ash (FA). The compressive and flexural strength and modulus of elasticity of cement mortars and concretes containing Pozzolit have been determined as well as the water- and gas permeability. The results have been compared with corresponding parameters of cement mortars and concretes without mineral admixture or with only one component--either silica fume or fly ash. It has been established that the Pozzolit active mineral admixture contributes not only to overcome the technological difficulties encountered in the process of silica fume delivery in cement mortars and concretes but also to improve cement stone strength and resistance.

• OSTI ID: 367791
• Journal Information: Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 7 Vol. 26; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
36 MATERIALS SCIENCE
BLAST FURNACES
COMPRESSION STRENGTH
CONCRETES
ELASTICITY
FLEXURAL STRENGTH
FLY ASH
FOSSIL-FUEL POWER PLANTS
MECHANICAL PROPERTIES
MORTARS
PHYSICAL PROPERTIES
SILICON OXIDES
SLAGS
WASTE PRODUCT UTILIZATION