Zobrazeno 1 - 10
of 35
pro vyhledávání: '"A.R Pourkhorshidi"'
Publikováno v:
مهندسی عمران شریف, Vol 33.2, Iss 3.1, Pp 39-45 (2017)
In recent years, the asphalt production cost has been increased appreciably. On th
Externí odkaz:
https://doaj.org/article/16f4eaf49c4b427880246b65748e4e2a
Publikováno v:
Advances in Cement Research. 33:550-560
Pozzolans are available in natural resources as raw materials that are potentially applicable in the cement and concrete industries. Proper identification and exploration methods are crucial in relation to their technical and economical purposes. In
Publikováno v:
Construction and Building Materials. 299:123863
This paper aims to study the long-term durability of reinforced concrete in Persian Gulf region, as one of the most aggressive marine environments. Ten mixtures with Type II, and V cement and Portland Pozzolanic cements including IS(20), IPnp(15) and
Publikováno v:
Construction and Building Materials. 30:529-536
No-slump concrete has two major applications including roller compacted concrete and prefabricated concrete. The durability concerns of the later one; in particular the deterioration of sewer concrete pipes in natural acidic environment, are the auth
Publikováno v:
Ultrasonics Sonochemistry. 19:119-124
Natural pozzolans are appropriate supplementary cementitious materials in cement and concrete industry. A simple sonochemical method was developed to synthesize nanostructures of natural pozzolan. Chemical composition, crystallinity, morphology and r
Autor:
A.R. Pourkhorshidi, Meysam Najimi
Publikováno v:
Magazine of Concrete Research. 63:605-615
In this paper, the effects of using copper slag wastes as a supplementary cementitious material on mechanical properties and durability aspects of concrete are studied. To this aim, mixtures are made by employing 5, 10 and 15% copper slag as cement r
Publikováno v:
Construction and Building Materials. 25:1895-1905
Sulfate attack is one of several chemical mechanisms of concrete deterioration. Exposure of concrete structures in the sulfate environments may lead to detrimental chemical, microstructural, and physical changes in the concrete matrix, resulting in s
Publikováno v:
Cement and Concrete Composites. 32:794-800
Nowadays, the production of binary cements, containing pozzolans (including silica fume, fly ash, natural pozzolans, etc.), is a global practice. Many countries have ample resources of natural pozzolans, capable of being used in binary cements, which
Publikováno v:
Advances in Cement Research. 22:157-164
The range of methodologies available for pozzolan classification, predicated on different viewpoints, may occasionally offer conflicting judgements regarding pozzolans. The present study compared the results obtained by assessing several natural pozz
Publikováno v:
Construction and Building Materials. 24:709-718
No-slump concrete (NSC) is defined as concrete having either very low or zero slump that traditionally used for prefabrication purposes. The sensitivity of NSC to its constituents, mixture proportion, compaction, etc., enforce some difficulties in th