{"id":1122,"date":"2015-04-15T22:33:29","date_gmt":"2015-04-15T18:33:29","guid":{"rendered":"http:\/\/nanobuild.ru\/en_EN\/?p=1122"},"modified":"2016-04-15T22:34:52","modified_gmt":"2016-04-15T18:34:52","slug":"nanobuild-2-2016-pages-109-134","status":"publish","type":"post","link":"https:\/\/nanobuild.ru\/en_EN\/nanobuild-2-2016-pages-109-134\/","title":{"rendered":"Nanobuild-2-2016-pages-109-134"},"content":{"rendered":"

Pages:\u00a0\u00a0 109-134<\/strong><\/p>\n

THE RESULTS OF THE SPECIALISTS\u2019 AND SCIENTISTS\u2019 RESEARCHES<\/strong><\/p>\n

UDC 691<\/p>\n

The effect of using hybrid nanomaterials on drying shrinkage and strength of cement pastes<\/strong><\/p>\n

Author: <\/strong>: Saaid I. Zaki<\/strong>, Professor in Hosing and Building National Research Center HBRC , Cairo ,<\/p>\n

Egypt ; Tahreer street, 87, dokki, Cairo, Egypt; 11511, Post box no 1770, saaid_zaki@yahoo;<\/p>\n

Author: <\/strong>Hossam A. Hodhod<\/strong>, Professor in Faculty of Engineering Cairo University, Cairo, Egypt;<\/p>\n

Tahreer street, 87, dokki, Cairo, Egypt; 11511, Post box no 1770, saaid_zaki@yahoo;<\/p>\n

Author: <\/strong>Mostafa A. Mahdi<\/strong>, Assistant Lecturer in Faculty of Engineering, Misr University for Science and Technology, Giza, Cairo , Egypt ; Tahreer street, 87, dokki, Cairo, Egypt; 11511, Post box no 1770, saaid_zaki@yahoo.<\/p>\n

Extended Abstract:<\/strong><\/p>\n

The aim of this work is to study the effect of nanomaterials on the properties of cement paste, the experimental program included three parts: a- two types of nanosilica, locally produced NS1 and imported NS2, b- nanoclay (NC) and c- Hybrid nanoparticles (NS1 & NC). In each part,<\/p>\n

cement paste was used with different percentages of nanoparticles. Compressive strength and drying shrinkage tests were applied in each part on the cured and uncured samples. The results showed that the compressive strength improved in the cement paste mixtures in the cured condition, the optimum percentages was 1% for NS1, 1% for NS2, 5% for NC, and 5% (0.5%NS1 & 4.5%NC) for hybrid nanoparticles. The drying shrinkage increases with adding nanosilica and hybrid nanoparticles, while it decreases when adding NC.<\/p>\n

Key words: <\/strong>nanosilica, nanoclay, hybrid nanomaterials.<\/p>\n

DOI: dx.doi.org\/10.15828\/2075-8545-2016-8-2-109-134<\/strong><\/p>\n

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