New experimental method for evaluating the water permeability of concrete by a lateral flow procedure on a hollow cylindrical test piece

Amriou, Abderrachid; Bencheikh, Mohamed Laïd

doi:10.1016/j.conbuildmat.2017.06.126

Cited by 23 publications

(11 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Amriou and Bencheikh [ 47 ] noted that a shorter flow path results in a better steady state flow condition. Therefore, the permeability test can be carried out in a shorter time.…”

Section: Research Materials and Testing Methodsmentioning

confidence: 99%

An Experimental Assessment of the Water Permeability of Concrete with a Superplasticizer and Admixtures

2020

View full text Add to dashboard Cite

This study presents a flow pump technique usually used for evaluating the permeability of soils, which was, for first time, applied to measure the water permeability of concrete. Additionally, a new easy-to-apply method to determine permeability is proposed, based on a modification of Valenta’s formula. In the calculations, the apparent air content of concrete mixes was taken into account. An additional purpose of the conducted research was to determine the influence of a new generation of polycarboxylate superplasticizer and chemically active admixtures on the permeability, compressive strength, and other properties of concrete. The following four types of concrete were tested: concrete without admixtures, concrete with an admixture to increase the compressive strength, concrete with a superplasticizer, and concrete containing two admixtures simultaneously. The results showed that the proposed method allows to obtain reliable measurements within a very short period of time. The obtained results confirmed that new method may be very useful in engineering practice, particularly in terms of the watertightness of hydrotechnical concretes and the properties of the concretes used in bridge construction, underground parts of office buildings, or sealed tanks.

show abstract

“…Amriou and Bencheikh [ 47 ] noted that a shorter flow path results in a better steady state flow condition. Therefore, the permeability test can be carried out in a shorter time.…”

Section: Research Materials and Testing Methodsmentioning

confidence: 99%

An Experimental Assessment of the Water Permeability of Concrete with a Superplasticizer and Admixtures

2020

View full text Add to dashboard Cite

show abstract

“…Recent studies used hollow cylinders [21,22,23] which measured radial flow of water under applied pressure. The main advantage of this kind of method is that the total area which allows fluids flowing through is much larger than the disc specimens; therefore, the measurements showed higher accuracy and repeatability [21,23], whilst the large area may have higher chances to face the effect of heterogeneity, which means that any cracks or area having greater water flow can significantly change the results. Another method is the dynamic pressurization (DP) which keeps the specimen in a sealed vessel and suddenly increasing or decreasing pressure [24,25].…”

Section: Introductionmentioning

confidence: 99%

Determination of water permeability for a moisture transport model with minimized batch effect

Zhang

Scherer

2018

Construction and Building Materials

View full text Add to dashboard Cite

Values of water permeability for cementitious materials reported in the literature show a large scatter. This is partially attributed to the fact that materials used in different studies are different. To eliminate the effects of cements, specimen preparation, curing conditions and other batch effects, this study employs a long cylindrical cement paste to prepare all specimens for a variety of permeability determination methods, such as beam bending, sorptivity, Katz-Thompson and Kozeny-Carman equations. Permeabilities determined by these methods are then used in a moisture transport model. Compared with the measured mass loss curves, we found that permeability determined by the beam bending method provides much closer results to the measured ones than other methods. The difference results from that the saturated specimen is used in the beam bending method while specimens in other methods are dried (or rewetted). As already shown in the literature, the microstructure of the dried or rewetted specimens is altered and different to the original microstructure of the water saturated specimens. . . .

show abstract

“…The water permeability and void content of cementitious materials is influenced by many factors, for example, the experimental conditions such as sample size and shape or interaction between binders, water, and aggregates. The reduction or increase of the final void content and permeability for conventional concretes is mainly due to the continuous hydration of the cement, water/ cement ratio, as well as the characteristics of the porous network of the cement-based material [31]. In the case of pervious concretes, the main reason for the increase of void content is the porous structure made by the particle sizes of the aggregates.…”

Section: Resultsmentioning

confidence: 99%

Assessment of a system for the prediction of water permeability coefficient in pervious concretes

et al. 2018

View full text Add to dashboard Cite

Proposing a system which makes it possible to determine the water permeability coefficient in pervious concretes in a practical way, without the need of devices which require complex instrumentation, is one of the aims of this work. An experimental matrix was proposed for the evaluation of the measurement system of the coefficient of permeability into pervious concrete considering three different pervious concretes obtained from different aggregate granulometric sizes, under the condition of dry sample or water saturated. The pervious concretes were characterized by their void contents, mechanical properties and later compared with the properties of a reference, control concrete made up of coarse and fine aggregates. The different properties exhibited in this study were assessed aiming at validating the experimental matrix developed for pervious concretes to provide a basis for comparison with information available in the literature. As a noticeable result, it was evidenced that the permeability coefficient of 0.21 cm.s-1 obtained for concrete with aggregate dimensions of 2.4 to 9.5 mm. It is possible to measure the coefficient of permeability of pervious concrete with the system developed in this study; the obtained results agree with the description of ACI522-06 for pervious concretes.

show abstract

New experimental method for evaluating the water permeability of concrete by a lateral flow procedure on a hollow cylindrical test piece

Cited by 23 publications

References 40 publications

An Experimental Assessment of the Water Permeability of Concrete with a Superplasticizer and Admixtures

An Experimental Assessment of the Water Permeability of Concrete with a Superplasticizer and Admixtures

Determination of water permeability for a moisture transport model with minimized batch effect

Assessment of a system for the prediction of water permeability coefficient in pervious concretes

Contact Info

Product

Resources

About