Results 191 to 200 of about 9,253 (234)

Permeability of Roller Compacted Concrete

Journal of Materials in Civil Engineering, 1992
Water‐permeability measurements were made on 50 mm diameter and 100 mm long cored cylinders obtained from a roller compacted concrete pavement that was 160 mm in average thickness. A triaxial permeability cell was used. The effect of water‐cement ratio, silica fume addition, use of a finer cement, curing technique, etc.
Nemkumar Banthia
exaly   +2 more sources

Creep of roller-compacted concrete

Hydrotechnical Construction, 1991
1. Rollcrete has creep, the general regularity of the development of which in time and as a function of the age of the concrete can be described by the formula proposed earlier by Aleksandrovskii and widely used for ordinary concrete. 2.
I. B. Zakharov, A. D. Osipov, A. S. Magiton   +2 more
openaire   +1 more source

Compaction properties of roller compacted concrete

Cement and Concrete Composites, 1996
Abstract The compaction characteristics of extremely dry concrete are evaluated using a new method based on a variable vibration table. This method allows the study of the effect of vibration frequency, vibration time and acceleration on the properties of concrete.
K. Kokubu, J.G. Cabrera, A. Ueno
openaire   +1 more source

Strength of Roller Compacted Concrete

Key Engineering Materials, 2006
The aim of this paper is to provide the credible evidence for existing theory. Rc、Rpl、 Rl and body shear strength of roller compacted concrete (RCC) are investigated. According to the database of Chinese RCC projects, eight regressive equations were set up by using the method of correlation analysis.
Yan Shi, Kun He Fang
openaire   +1 more source

Optimum Compaction Test of Roller Compacted Concrete Pavement

International Journal of Highway Engineering, 2015
PURPOSES : To ensure appropriate RCC properties with sufficient strength development and workability, it is necessary to secure a proper level of consistency. It is also necessary to secure maximum dry density, which is an important factor for increasing the interaction of aggregate interlocking, leading to an augmentation of RCC strength. On the other
Gun Woo Chung, Seung Woo Lee
openaire   +1 more source

ROLLER-COMPACTED CONCRETE PAVEMENTS

Proceedings of the International Conference on Concrete Pavements
Roller-compacted concrete pavement (RCCP) is a relatively new type of rigid pavement that utilizes a construction technique similar to asphaltic concrete pavement (ACP) construction to provide a strong, economical pavement. This paper discusses briefly the history and performance of RCCP to date, design and construction procedures used in US Army Corps
David W. Pittman, Thomas D. White
openaire   +1 more source

Roller compacted concrete and stepped spillways

2020
The use of roller compacted concrete (RCC) for new dam construction and for rehabilitation of existing dams has gained wide acceptance throughout the world. RCC is a zero slump concrete that is transported, spread and compacted using traditional earth moving equipment.
Eric J. Ditchey, David B. Campbell
openaire   +1 more source

Chapter 48 Roller compacted concrete

2011
Roller compacted concrete, or RCC, takes its name from the construction method used – it is placed by modified asphalt paving equipment, but it is stiff enough to be compacted by vibratory rollers. RCC has the same constituents as conventional concrete – cement, water and aggregates – and requires no formwork or reinforcement.
openaire   +1 more source

Rehabilitating Dams with Roller Compacted Concrete

Bridging the Gap, 2001
More than 77,000 dams are currently listed on the National Inventory of Dams with several hundred new ones added each year. By the year 2020 over 80% of these dams will be at least 50 years old. Many of these dams will require some degree of rehabilitation to stay current with state and federal dam design criteria, particularly in the areas of spillway
openaire   +1 more source

Roller Compacted Concrete Pavement in Virginia

Airfield and Highway Pavements 2015, 2015
Roller compacted concrete (RCC) is a concrete mixture with a low cementitious material and water content and a dry consistency. It is placed using an asphalt paver and consolidated using roller compaction. This zero-slump concrete does not require slip-form conventional concrete paving equipment for placement.
M. Shabbir Hossain, H. Celik Ozyildirim
openaire   +1 more source