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Nanosilica with microsilica –  a more than efficient combination

Tecnosil Silica Ativa, Bairro São Roque da Chave, Itupeva, SP – Brazil


One of the largest construction sites in SP, the Madeira Building, is located in the city of Barueri and consists of 26 floors, with the purpose of mixed commercial and residential use. This construction required special attention because, due to the schedule, concrete with high strength at an early age was needed, approximately 40.0 MPa at the age of 5 days, even with the use of CP II or CP III cements. In the tests done on the concrete it is possible to observe strengths at 28 days of around 70.0 MPa in some cases, and a modulus of deformation of up to 50.0 GPa, something very difficult to achieve with the conventional materials used by concrete mixers. The technological control performed by Qualitec required a high degree of technical competence, because to achieve numbers of this magnitude it was necessary to use the latest equipment and trained professionals alert to any possible interference in the processes.

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Tecnosil Silica Ativa
Rua Américo Simões, 119ª
Bairro São Roque da Chave, Itupeva, SP – Brazil
T +55 11 4591 2078
F +55 11 4593 1593

Qualitec Controle Tecnologico
Av. Dr. Silvio Margarido, 12
São Paulo, Brazil
T +55 11 3782 5300

CPi worldwide journals are trade journals for the concrete and precast concrete industry that are published in 10 different language editions in more than 170 countries. These trade journals, with their practical editorial reporting on research, production and applications, are specifically addressing the decision makers of the concrete and precast concrete industry.

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