Transport properties of blended cement based on dredged sediment and shells

Hassan Ez-zaki1∗, Abdeljebbar Diouri1, Siham Kamali-Bernard2

1Department of Chemistry, Faculty of Sciences, Mohammed 5 University of Rabat, Rabat, 10000, Morocco

2Laboratory of Civil and Mechanical Engineering, INSA-Rennes, European University of Brettany, Rennes, 35043, France

Adv. Mater. Lett., 2017, 8 (4), pp 481-485

DOI: 10.5185/amlett.2017.1434

Publication Date (Web): Mar 15, 2017

E-mail: ezzaki86@gmail.com

Abstract


This paper reports an experimental study carried out to investigate the influence of dredged sediments and shell powders on the transport properties of mortar. Blend based on the combination of marine by-products was used to replace a part of Portland cement, after thermal treatment. Cylindrical mortars and pastes were cast with water to binder ratio of 0.5 and 0.4, respectively. Control specimens were also cast. After 28 days of curing in water, the apparent porosity, the gas permeability, the chloride diffusion and accelerated carbonation was investigated. The results showed that the combination of dredged sediment and shell powder provides a positive effect on the transport properties. Besides, mortars containing 33% by weight of blend showed low gas permeability than that of the control mortar even apparent porosity is higher. In addition, the resistance to the chloride ingress is more pronounced for mortars with sediment:shell blend. The carbonation thickness is related to the carbonation age and replacement level. This blend proved better transport properties by the filler effect.

Keywords

Dredged sediment, shells, permeability, chloride ingress, transport properties.

Previous issues

Celebrating 10th Years of Diamond Open Access Publishing in Advanced Materials  

Cerebral Oxygenation Studies Through Near Infrared Spectroscopy: A Review

Analysis of Fine Sulfoaluminate Cement by Strength and Thermogravimetric Analysis

Characterization of the Interfacial Surface Energy for Composite Electrical Conduction Measurements using Two Full Range Percolation Threshold Models

Quantitative Detect of Fatigue of Membrane of Erythrocyte in Uniform Shear Field

Ecofriendly-developed Polyacrylic Acid-coated Magnetic Nanoparticles as Catalysts in Photo-fenton Processes

Evaluation of Drug Interactions with Medications Prescribed to Ambulatory Patients with Metabolic Syndrome in Urban Area

Fiber-reinforced Cementitious Composite: Sensitivity Analysis and Parameter Identification 

Evaluation of Drug Utilization Patterns Based on World Health Organization Drug use Indicators at Outpatients Clinics

Are Quantitatively Micro-machined Scaffolds Effective for Cell Technology?

Synthesis and Characterization of Gold Nanoparticles from Lobelia Nicotianifolia Leaf Extract and its Biological Activities

Advanced Oxidations of Tartrazine Azo-dye

Antifungal Activity of Salvia jordanii Against the Oral Thrush Caused by the Cosmopolitan Yeast Candida albicans among Elderly Diabetic Type 2 patients

Upcoming Congress

Knowledge Experience at Sea TM