Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites
We investigate the performance of graphene oxide (GO) in improving mechanical properties of cement composites. A polycarboxylate superplasticizer was used to improve the dispersion of GO flakes in the cement. The mechanical strength of graphene-cement nanocomposites containing 0.1–2 wt% GO and 0.5 w...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/276323 |
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| author | Fakhim Babak Hassani Abolfazl Rashidi Alimorad Ghodousi Parviz |
| author_facet | Fakhim Babak Hassani Abolfazl Rashidi Alimorad Ghodousi Parviz |
| author_sort | Fakhim Babak |
| collection | DOAJ |
| description | We investigate the performance of graphene oxide (GO) in improving mechanical properties of cement composites. A polycarboxylate superplasticizer was used to improve the dispersion of GO flakes in the cement. The mechanical strength of graphene-cement nanocomposites containing 0.1–2 wt% GO and 0.5 wt% superplasticizer was measured and compared with that of cement prepared without GO. We found that the tensile strength of the cement mortar increased with GO content, reaching 1.5%, a 48% increase in tensile strength. Ultra high-resolution field emission scanning electron microscopy (FE-SEM) used to observe the fracture surface of samples containing 1.5 wt% GO indicated that the nano-GO flakes were well dispersed in the matrix, and no aggregates were observed. FE-SEM observation also revealed good bonding between the GO surfaces and the surrounding cement matrix. In addition, XRD diffraction data showed growth of the calcium silicate hydrates (C-S-H) gels in GO cement mortar compared with the normal cement mortar. |
| format | Article |
| id | doaj-art-6bc42e92d9c9444899e7e534435cba45 |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-6bc42e92d9c9444899e7e534435cba452025-08-20T03:33:45ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/276323276323Preparation and Mechanical Properties of Graphene Oxide: Cement NanocompositesFakhim Babak0Hassani Abolfazl1Rashidi Alimorad2Ghodousi Parviz3Civil Engineering and Environment Faculty, Tarbiat Modares University, Tehran 111-14115, IranCivil Engineering and Environment Faculty, Tarbiat Modares University, Tehran 111-14115, IranNanotechnology Research Center, Research Institute of Petroleum Industry, Tehran, IranCivil Engineering Department, Iran University of Science and Technology, Tehran, IranWe investigate the performance of graphene oxide (GO) in improving mechanical properties of cement composites. A polycarboxylate superplasticizer was used to improve the dispersion of GO flakes in the cement. The mechanical strength of graphene-cement nanocomposites containing 0.1–2 wt% GO and 0.5 wt% superplasticizer was measured and compared with that of cement prepared without GO. We found that the tensile strength of the cement mortar increased with GO content, reaching 1.5%, a 48% increase in tensile strength. Ultra high-resolution field emission scanning electron microscopy (FE-SEM) used to observe the fracture surface of samples containing 1.5 wt% GO indicated that the nano-GO flakes were well dispersed in the matrix, and no aggregates were observed. FE-SEM observation also revealed good bonding between the GO surfaces and the surrounding cement matrix. In addition, XRD diffraction data showed growth of the calcium silicate hydrates (C-S-H) gels in GO cement mortar compared with the normal cement mortar.http://dx.doi.org/10.1155/2014/276323 |
| spellingShingle | Fakhim Babak Hassani Abolfazl Rashidi Alimorad Ghodousi Parviz Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites The Scientific World Journal |
| title | Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites |
| title_full | Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites |
| title_fullStr | Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites |
| title_full_unstemmed | Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites |
| title_short | Preparation and Mechanical Properties of Graphene Oxide: Cement Nanocomposites |
| title_sort | preparation and mechanical properties of graphene oxide cement nanocomposites |
| url | http://dx.doi.org/10.1155/2014/276323 |
| work_keys_str_mv | AT fakhimbabak preparationandmechanicalpropertiesofgrapheneoxidecementnanocomposites AT hassaniabolfazl preparationandmechanicalpropertiesofgrapheneoxidecementnanocomposites AT rashidialimorad preparationandmechanicalpropertiesofgrapheneoxidecementnanocomposites AT ghodousiparviz preparationandmechanicalpropertiesofgrapheneoxidecementnanocomposites |