Concrete Permeability and Durability Performance

2021 ◽  
Author(s):  
Roberto J. Torrent ◽  
Rui D. Neves ◽  
Kei-ichi Imamoto
Keyword(s):  
Concrete Permeability ◽  
Durability Performance

Durability performance of silica fume Self-Compacting Concrete

2019 ◽  
Vol 164 (0) ◽  
pp. 193-213
Author(s):  
Taha E. Taha ◽  
Ahmed M. Tahwia ◽  
Ahmed H. Abdelraheem
Keyword(s):  
Silica Fume ◽  
Self Compacting Concrete ◽  
Durability Performance

scholarly journals Mechanical and durability performance of marine sand and seawater concrete incorporating silicomanganese slag as coarse aggregate

2020 ◽  
Vol 254 ◽  
pp. 119195 ◽  
Author(s):  
Matthew Zhi Yeon Ting ◽  
Kwong Soon Wong ◽  
Muhammad Ekhlasur Rahman ◽  
Meheron Selowara Joo
Keyword(s):  
Coarse Aggregate ◽  
Silicomanganese Slag ◽  
Marine Sand ◽  
Durability Performance

Mechanical strength and durability performance of autoclaved lime-saline soil brick

2017 ◽  
Vol 146 ◽  
pp. 403-409 ◽  
Author(s):  
Tung-Chai Ling ◽  
Kim Hung Mo ◽  
Lie Qu ◽  
Jiujun Yang ◽  
Lei Guo
Keyword(s):  
Mechanical Strength ◽  
Saline Soil ◽  
Strength And Durability ◽  
Durability Performance

Performance of Blended Cement Concrete against Seawater Attack

2010 ◽  
Vol 64 ◽  
pp. 19-24
Author(s):  
H.H. Seleem ◽  
A.M. Rashad ◽  
B.A. El-Sabbagh
Keyword(s):  
Blended Cement ◽  
Strength Loss ◽  
Synthetic Seawater ◽  
Strength Deterioration ◽  
Ordinary Concrete ◽  
Granulated Blast Furnace Slag ◽  
Concrete Mixtures ◽  
Concrete Permeability ◽  
Pozzolanic Materials ◽  
Furnace Slag

The current work reports the influence of synthetic seawater on some of the durability aspects of an ordinary concrete mixture (control) and six pozzolan-concrete mixtures. Three types of pozzolanic materials were employed; silica fume (SF), ground granulated blast furnace slag (GGBS) and metakaolin (MK). The pozzolanic materials were employed as an addition to cement in binary and ternary combinations. All mixtures were tested for strength deterioration ratio (SDR) after 3, 6, and 12 months of exposure to synthetic seawater, permeability was measured after 6 and 12 months of exposure. It was found through this investigation that pozzolans increase the ability of concrete to withstand aggressive environment and prevent most of the deterioration signs. The pozzolanic materials serve also to increase the strength and to minimize the strength loss (SDR) upon exposure to seawater. The pozzolanic materials led to reduce concrete permeability compared to control.

scholarly journals Effect of High-Dispersible Graphene on the Strength and Durability of Cement Mortars

Materials ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 915
Author(s):  
Xiaoqiang Qi ◽  
Sulei Zhang ◽  
Tengteng Wang ◽  
Siyao Guo ◽  
Rui Ren
Keyword(s):  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Cement Mortar ◽  
Chloride Ion ◽  
Cementitious Materials ◽  
Chloride Ion Penetration ◽  
Cement Mortars ◽  
Strength And Durability ◽  
Durability Performance

Graphene’s outstanding properties make it a potential material for reinforced cementitious composites. However, its shortcomings, such as easy agglomeration and poor dispersion, severely restrict its application in cementitious materials. In this paper, a highly dispersible graphene (TiO2-RGO) with better dispersibility compared with graphene oxide (GO) is obtained through improvement of the graphene preparation method. In this study, both GO and TiO2-RGO can improve the pore size distribution of cement mortars. According to the results of the mercury intrusion porosity (MIP) test, the porosity of cement mortar mixed with GO and TiO2-RGO was reduced by 26% and 40%, respectively, relative to ordinary cement mortar specimens. However, the TiO2-RGO cement mortars showed better pore size distribution and porosity than GO cement mortars. Comparative tests on the strength and durability of ordinary cement mortars, GO cement mortars, and TiO2-RGO cement mortars were conducted, and it was found that with the same amount of TiO2-RGO and GO, the TiO2-RGO cement mortars have nearly twice the strength of GO cement mortars. In addition, it has far higher durability, such as impermeability and chloride ion penetration resistance, than GO cement mortars. These results indicate that TiO2-RGO prepared by titanium dioxide (TiO2) intercalation can better improve the strength and durability performance of cement mortars compared to GO.

Durability performance of Portland limestone cement mortar containing butyl and zinc stearate admixtures

2021 ◽  
Vol 54 (2) ◽  
Author(s):  
Athanasios Malakopoulos ◽  
Manolis Chatzigeorgiou ◽  
Nikos Boukos ◽  
Athanasios Salifoglou
Keyword(s):  
Cement Mortar ◽  
Zinc Stearate ◽  
Portland Limestone Cement ◽  
Limestone Cement ◽  
Durability Performance
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