نتایج جستجو برای: concrete additive

تعداد نتایج: 142920  

M. Naderi and S. A. K. Mousavi,

Deterioration of concrete, which is mainly due to ignorance of environmental and service conditions, causes considerable costs for the construction industry. With this in mind, in this paper, results of investigation into the major causes of concrete deterioration in the Urumie Lake are presented. For the purposes of this investigation, samples were obtained by mixing two types of cement (OPC t...

Mohammad Reza Nilforoushan

Micro silica (MS) is an extremely fine, spherical powder that is used as an additive for improving concrete performance. It is obtained as a by product of silicon metal and ferrosilicon alloy production.  Due to its pozzolanic nature, micro silica can be used to enhance the qualities of both  fresh  and  hardened  concrete. Addition of micro silica into the concrete as a cement rep...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

M. Naderi and S. A. K. Mousavi,

Deterioration of concrete, which is mainly due to ignorance of environmental and service conditions, causes considerable costs for the construction industry. With this in mind, in this paper, results of investigation into the major causes of concrete deterioration in the Urumie Lake are presented. For the purposes of this investigation, samples were obtained by mixing two types of cement (OPC t...

2004

RICE HUSK AMORPHOS SILICA AS GELATION AGENTS FOR VERTICAL CONCRETE STAINS, CEMENT ADDITIVE, FILLERS AND ABSORBANTS A.1. IDENTIFICATION AND SIGNIFICANCE OF THE INNOVATION Rare Earth® Labs is independently owned and operated company located in El Dorado, Arkansas manufacturing concentrated concrete and masonry acid stains that are uniquely manufactured for customers who want to achieve a natural ...

Journal: :Journal of Civil Engineering and Management 2012

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