Construction

A full-scale trial has been constructed in the UK in which concrete surfaces with brushed, tined bnd exposed aggregate textures have been compared with traditional hot rolled asphalt. The concrete surfaces were applied to a 250 mm thick, continuously reinforced concrete pavement laid by railmounted paving equipment. The exposed aggregate...

Fast track concrete pavement technology provides alternatives that can meet the public's demand for quick access to quality pavements. Fast track concrete pavement construction entails any method of accelerating construction. Some changes in tradicional use and consideration of certain aspects ot concrete pavement construction accompany fast track. However, fast track...

This article describes the Slovenian experience with PCC technology on four different sites with different requirements and for different purposes. The job mix formulas and the different application possibilities are described. Paver compacted concrete (PCC) is a relatively new construction method which was evaluated from roller compacted concrete (RCC) technology....

Since slip-form payers were introduced in Spain in 1930, more than 1.400 km of two-lane concrete pavements have been constructed with them. A proportion exceeding 90% of the total has been provided with longitudinal finishes, using different methods: burlap, plastic-bristled brushes, metal -tined combs, etc. In all cases, surfaces with...

Concrete, which has withstood all the loads on heavily used roads for many decades, can be used again as a concrete aggegrate in road pavement construction after undergoing appropriate treatment. The example of four pavement batches prepared by 2 different companies in 1992 and 1993 on the A27 motorway m...

In many countries rullw cumpactod concrete (RCC) proved to be a success as a construction method for highly stressed industrial floors, for concrete pavements, subbases for concrete pavements and asphalt surfaces. Since 1993 the Research, Development and Consulting Department of tho Heidelberger Zement AG is attended with a research project...

rFor the reconstruction of the E31 3 motorway which was constructed with concrete slabs round about 1960, CRCP was chosen and since 1983 the exposed aggregate technique was applied there. As the conventional exposed aggregate concrete is still too noisy, in 1992 it was decided to pursue the reconstruction works...

Session Paper Indexes, Opening Addresses, General Reports, Oral Contributions and Closings from the 6th International Symposium on Concrete Roads 1990 Madrid Spain

Quality assurance (QA) in its traditional meaning is based on very detailed, in general prescriptive design and construction standards, on standardi-zed conformity criteria for all construction mate-rials and on generally accepted rules for good cons-truction practice. This basis allowed to limit QAon control tests and acceptance decisions for in-termediate or...

The growing concern about the influence of the road surface on traffic noise raises the problem of reducing the noisiness of cement concrete roads whilst keeping high skid resistance values. Studies on various aspects of tyre/road interaction con-ducted in the past ten years at the Belgian Road ResearchCentre provide basic...

In this paper, basic characteristics of concrete pavements constructed in Spain during the last years, corresponding to the General Highway Plan 1984-1991, are described. The main solutions adopted to get a concrete pavement with high strength and appropriate texture are an~)ed. The solutions used in the construction in cold weather...

According to the findings made on French road network about .helow skidding resistance, GAILLEDRAT Pére & Fils com-rany developed a new surface treatment concept: THE SUR-:;'ACESHOTBLASTING.l'his technique which allows to treat most of the slippery road.urface problems on asphalt or concrete pavements. permits toncrease the surface roughness "as requested" and...