The requirement of inert materials for the building industry may be determined according to a number of approaches, also because it is strictly interlinked to several compartments of the economic system, and undoubtedly represents one of the main final outlets for quarry materials. The demand for these materials therefore will be directly affected by the trend in the construction sector. In particular not considering public works, the explicit requirement for inert materials may be grouped under the following typologies: 1. residential buildings 2. productive buildings Among the Italian regions we quote Lombardy, which with Art. 5 of the Regional Act no. 14 dated 08 August 1998 (New provisions governing the mining of quarry minerals) introduced the variables to be taken into consideration in evaluating the requirement for inert materials in the Province, and established a yearly regional average requirement of gravel sands of 4 cub m per inhabitant. This figure, however, is overdimensioned as it is linked mainly to the structure of the city. It gets reduced, and the more compact the city the greater the reduction approaching 4 cub m per inhabitant for more diffused city configurations. From a comparison of the per capita annual volumes of inert materials for building calculated for the Provinces of Milan and Mantua, the following emerges. The small difference in favour of the Province of Mantua is due mainly to the shape of the city. The more compact shape of the city of Milan, and in particular the fact that the residential spaces are contracted lead to a lower per capita consumption of inert materials. In the city of Mantua the fact that the city configuration is less compact in terms of per capita space leads to a greater use of inert materials per inhabitant. Excluded from this reasoning are the portions of territory outside the respective cities, for which no significant difference was found, and an average consumption of 1.4-1.5 cub m per inhabitant can be confirmed. There is a relation therefore between the shape of the city and the consumption of inert materials. The materials forecast calculation affords greater environmental protection and sustainability, both in the quarrying and in the building activity.
Quarrying activity and the building industry, relations between production and the demand level for inert materials for construction for greater environmental sustainability
BALLETTO, GINEVRA
2005-01-01
Abstract
The requirement of inert materials for the building industry may be determined according to a number of approaches, also because it is strictly interlinked to several compartments of the economic system, and undoubtedly represents one of the main final outlets for quarry materials. The demand for these materials therefore will be directly affected by the trend in the construction sector. In particular not considering public works, the explicit requirement for inert materials may be grouped under the following typologies: 1. residential buildings 2. productive buildings Among the Italian regions we quote Lombardy, which with Art. 5 of the Regional Act no. 14 dated 08 August 1998 (New provisions governing the mining of quarry minerals) introduced the variables to be taken into consideration in evaluating the requirement for inert materials in the Province, and established a yearly regional average requirement of gravel sands of 4 cub m per inhabitant. This figure, however, is overdimensioned as it is linked mainly to the structure of the city. It gets reduced, and the more compact the city the greater the reduction approaching 4 cub m per inhabitant for more diffused city configurations. From a comparison of the per capita annual volumes of inert materials for building calculated for the Provinces of Milan and Mantua, the following emerges. The small difference in favour of the Province of Mantua is due mainly to the shape of the city. The more compact shape of the city of Milan, and in particular the fact that the residential spaces are contracted lead to a lower per capita consumption of inert materials. In the city of Mantua the fact that the city configuration is less compact in terms of per capita space leads to a greater use of inert materials per inhabitant. Excluded from this reasoning are the portions of territory outside the respective cities, for which no significant difference was found, and an average consumption of 1.4-1.5 cub m per inhabitant can be confirmed. There is a relation therefore between the shape of the city and the consumption of inert materials. The materials forecast calculation affords greater environmental protection and sustainability, both in the quarrying and in the building activity.
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