Conf. Paper (EUPAVE)

The technology of in-situ concrete safety barriers has not really changed in the last two centuries. After an extensive development and crash-test program a new generation was created recently. This is a technical report on the right way to use in-situ concrete at today´s level of technology. In the central...

Road constructions with fibremix concrete allow longer distances between joints, compared to unreinforced concrete pavements. In the absence of a dedicated design tool for fibremix concrete pavements, the search for a maximum crack-free slab length took place in several projects. Fibremix concrete has been used in parking areas near motorways,...

There is significant uncertainty and variation in the environmental life cycle assessment of pavements. Uncertainty and scenario variation should be sufficiently accounted in the comparative life cycle assessment in order to increase the confidence on decisions regarding the environmental implications of alternative pavement systems. In this paper we first present...

As a proposed long-term pavement solution for bus stops and corridors in highly urbanized areas, four experimental short continuously reinforced concrete pavement (CRCP) sections with different percentages of longitudinal steel were built in São Paulo, Brazil. The pavement sections are only 50 meters long each, a short constructive length in...

Excessive early early-age concrete surface moisture evaporation can be a source of key issues in the paving of concrete pavemen t, such as plastic shrinkage cracking and spalling related delamination; the use of liquid membrane membrane-forming curing compounds is one of the most prevalent methods to protect hydrating concrete surfaces...

Fly-ash is a pozzolanic material, so it can contribute to various properties, such as strength development at mature age. The strength development at early age, however, is significantly slow and may negatively affect traffic service. Early strength may be improved when limestone filler is mixed in fly-ash concrete. In addition,...

The approach to using concrete as a material to form a Barrier is almost as ancient as the material itself. Through significant effort and investment, Britpave has successfully driven the directive to install concrete barrier on all motorways in the UK that carry more than 25000 vehicles per day. The...

Argentina has a rich history in concrete pavement construction. However, in the late 70s this type of pavement begins to lose protagonism in national road activity. In order to reinstate this solution for paving and rehabilitation projects, the Instituto del Cemento Portland Argentino, in the mid-90s, carried out a series...

Two-lift concrete pavement construction is not new, especially in Europe. In the United States it was used in the mid-1900’s but fell out of favor. This technology is one being considered by the Federal Highway Administration’s “Every Day Counts” initiative to implement innovations to the public. This paper discusses the...

One of the basic premises in any infrastructure project is the use of locally available materials in order to optimize resources. This criterion was adopted for the construction of the first section of RN 14 highway in Argentina. A concrete mix design was prepared in laboratory using a Siliceous River...

The continuously reinforced concrete pavement (CRCP)/bituminous-bound graded aggregates (BBGA) composite structure has been chosen as a base solution for the conversion and development road works carried out in the industrial harbour area of Bassens in the Bordeaux Suburb (France). This structure, which was suggested by the Bordeaux City Administration Engineering...

Marchena bypass is a ring road which will run in the south of Marchena, in Seville’s province. Its total length is 7,6 km, and its cross section is 10 m in the coronation of the pavement. After deciding the placement of the concrete pavement, the specific type chosen was the...