Measurement of porosity as a predictor of the durability performance of concrete with and without condensed silica fume

2001 ◽  
Vol 13 (4) ◽  
pp. 165-174 ◽  
Author(s):  
P. A. Claisse ◽  
J. G. Cabrera ◽  
D. N. Hunt
Keyword(s):  
Silica Fume ◽  
Condensed Silica Fume ◽  
Durability Performance

Special Binding for Refractory Concretes

2019 ◽  
Vol 17 (17) ◽  
pp. 11-16
Author(s):  
Elena Valentina Stoian ◽  
Dan Nicolae Ungureanu ◽  
Florin Toma ◽  
Alexandru Gabriel Colţa ◽  
Daniel Anculescu ◽  
...  
Keyword(s):  
Silica Fume ◽  
Ph Value ◽  
Concrete Structures ◽  
Hydrated Alumina ◽  
Binding System ◽  
Hydraulic Binder ◽  
Aluminous Cement ◽  
Mechanical Strengths ◽  
Condensed Silica Fume ◽  
New System

AbstractThe paper shows data related to coexistence of various binding systems, which could be present during the hardening of special concretes. It is taken into account the Ultra Low Aluminous Cement Concretes additivated with different materials (phosphates and mineral ultra dispersed powders - Condensed Silica Fume, Hydrated Alumina etc). In correlation to the pH-value, these substances can favour the forming of new binding systems besides the hydraulic binder (which is not important in this case). The new system is the coagulation binding form. The coagulation binding system has a very important role in the advanced compactness and in the increasing mechanical strengths of concrete structures.

Durability performance of silica fume Self-Compacting Concrete

2019 ◽  
Vol 164 (0) ◽  
pp. 193-213
Author(s):  
Taha E. Taha ◽  
Ahmed M. Tahwia ◽  
Ahmed H. Abdelraheem
Keyword(s):  
Silica Fume ◽  
Self Compacting Concrete ◽  
Durability Performance

High Performance Concrete with Ternary Binders

2018 ◽  
Vol 761 ◽  
pp. 120-123 ◽  
Author(s):  
Vlastimil Bílek ◽  
David Pytlík ◽  
Marketa Bambuchova
Keyword(s):  
Fly Ash ◽  
Portland Cement ◽  
Silica Fume ◽  
High Performance ◽  
Ordinary Portland Cement ◽  
High Performance Concrete ◽  
Fresh Concrete ◽  
Binder Ratio ◽  
Water To Binder Ratio ◽  
Condensed Silica Fume

Use a ternary binder for production of a high performance concrete with a compressive strengths between 120 and 170 MPa is presented. The water to binder ratio of the concrete is 0.225 and the binder is composed of Ordinary Portland Cement (OPC), condensed silica fume (CSF), ground limestone (L), fly ash (FA) and metakaoline (MK). The dosage of (M + CSF) is kept at a constant level for a better workability of fresh concrete. Different workability, flexural and compressive strengths were obtained for concretes with a constant cement and a metakaoline dosage, and for a constant dosage (FA + L) but a different ratio FA / L. An optimum composition was found and concretes for other tests were designed using this composition.

High strength mortars containing condensed silica fume

1984 ◽  
Vol 14 (5) ◽  
pp. 693-704 ◽  
Author(s):  
M. Buil ◽  
A.M. Paillère ◽  
B. Roussel
Keyword(s):  
Silica Fume ◽  
High Strength ◽  
Condensed Silica Fume

Microsilica Concrete: A Technological Breakthrough Commercialized

1984 ◽  
Vol 42 ◽  
Author(s):  
Farrokh F. Radjy ◽  
Kjell E. Loeland
Keyword(s):  
Silica Fume ◽  
High Strength ◽  
Binder Phase ◽  
Conventional Concrete ◽  
Technological Breakthrough ◽  
Micropore Structure ◽  
High Durability ◽  
New Generation ◽  
Condensed Silica Fume ◽  
The U.S

AbstractWith the advent of microsilica concrete, a new generation of high to ultra high strength and high durability concretes have become commercially feasible and are now being specified and used internationally. Microsilica concrete is produced by incorporating microsilica (beneficiated condensed silica fume) additives in conventional concrete mixes, using conventional materials and equipment. Flowing microsilica concretes with strengths as high as 17000 psi have become field realizable, also benefiting by durability improvements expressible by factors, not percents.Properties of microsilica concrete are reviewed, and property improvements qualitatively linked to a much refined micropore structure of the binder phase.Some recent and rapidly developing field and laboratory experience both in the U.S. and overseas are presented.

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