Experimental Studies on Roughness Coefficient of Concrete Block Channel with Pebbles
نویسندگان
چکیده
منابع مشابه
experimental studies on gfrp repaired hollow-block concrete sections
this study evaluates two different types of techniques for concrete hollow-block sections reinforced with traditional steel rebars and wire meshes, and compares their structural behaviour to that of an ordinary reinforced concrete beam section. the comparisons are based on the responses both before and after they were repaired with glass fibre reinforced polymers (gfrp). the specimens were subj...
متن کاملEffect of surface roughness on steel-steel dry friction coefficient
The influence of surface roughness magnitude and direction on dry static friction coefficient between two similar steel samples has been studied through an experiment. A testing apparatus has been designed and fabricated to measure the friction coefficient for a few forms of surface asperity. According to the results of the experiments, dry friction coefficient is affected by both magnitude and...
متن کاملExperimental Studies on Concrete with Bentonite as Mineral Admixture
The present investigation deals with effect of bentonite clay on concrete. The concrete was produced by partial replacement of OPC with mineral admixture bentonite clay in percentages of 0%, 5%, 10%, 15% and 20%. The M20 grade of concrete was designed. The compressive strength, split tensile strength and flexural strength were found for the specimens. The present investigation is to study the e...
متن کاملRecent Experimental Studies on Microscale Channel Flows
In this paper, we review recent experimental studies on single-phase and multiphase flows in microchannels. Brief overviews of physical phenomena of fluid flow in microchannels, and measurement techniques mainly in conjunction with the flow visualization, are given. Regarding the studies of single-phase flows, the current state-of-the-art of electrokinetics and optofluidics is outlined. Then th...
متن کاملExperimental Measurements On The Permeability Coefficient Of A Concrete Sample Under Low Pressure Differences
This paper presents preliminary experimental results on the measurement of the air permeability coefficient in a concrete sample that has been subjected to constant pressure differences of 5 and 10 Pa (3.45 x 1 0 ' ~ 6.90 x 1u2 psi). This experimental model simulates indoor radon gas entry by advection. A reliable air permeability system was designed to perform laboratory measurements on concre...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Rainwater Catchment Systems
سال: 1999
ISSN: 1343-8646,2186-6228
DOI: 10.7132/jrcsa.kj00003257804