Manual of secondary materials in sport area construction
Manual of secondary materials in sport area construction was written within the framework of UUMA2 (secondary materials in earth construction)- programme 2013-2017 and was financed by the Finnish Ministry of Education and Culture. The manual is first secondary material guide concerning sport areas in general. The manual is directed especially to municipality sector (orderer, decision/policy-maker) for green procurements but it includes also guidelines for designers, material suppliers and contractors. Possibilities of secondary materials should be observed and considered right at the beginning of every sport area project to be launched, and this will be demanded in the near future for the promotion of circular economy.
Sport areas are often constructed on top of poor quality grounds like soft soils, subside or frost sensitive areas and poorly drainaged areas. This brings challenges to the construction work and to the durability of the actual top structures and surface of the sport area. Also functionality and technical demands of the sport area surface must be fulfilled. Often secondary materials offer better solutions to these problems than the traditional methods with rock materials. Advantages of the usage of secondary materials in sport area construction are for example savings of the material (remarkable amounts of materials are usually needed in sport area construction purposes) and better technical properties than those of rock materials (e.g. thermal insulation, elasticity, lightness).
The manual covers outdoor sport areas that offer many possibilities to use secondary materials. Multifaceted sport areas and functions relating to them enable diversified use of the secondary materials in applications like for example the top structures of field areas and outdoor courts (sand, grass, and synthetic grass courts) ice rinks, running tracks and athletic sport performance sites, nearby sporting sites, footpaths, jogging paths, mountain biking courts, golf courses, equestrians sports areas, earth fill embankment auditoriums, areas with soft soil grounds or old poor structures, courtyard and parking areas of sports areas etc.
Different secondary materials are presented in the manual, for example fly ash, bottom ash (bottom sand), slag, crushed concrete, crashed tyre and rubber, calcite enrichment sand, fibre clay, foamed glass etc., and also their special features, characteristics and properties that should be considered. This is important because many materials have multipurpose roles in the structure. Also the legislation, transport, storage, manageability, processing etc. are demonstrated. The manual also presents secondary material sport area applications and gives simple guideline examples of top structure solutions and possibilities in general (no scaling or dimensioning).
The manual provides guidelines to the execution of the earth construction project with secondary materials from the acquisition of initial data from the site all the way to the implementation of the sport area, including the key points that should be noticed for example in ground investigation, preliminary survey of secondary materials, material investigations and designing, environmental and permission process, supply and storage of the construction materials, construction, quality assurance and follow-up researches. The manual also presents some “case”-examples of executed secondary material sport area projects.
Manual of secondary materials in sport area construction can be downloaded for free in Finnish from the website http://www.uusiomaarakentaminen.fi/rakentaminen.
Lessons learnt from practical projects , New products, applications and machinery , Processing possibilities and logistics
