Melhoramento de solos para pavimentação através da técnica de estabilização por aditivos químicos: resíduo de cerâmica vermelha e cal

Abstract

Although being the main mean of transportation in Brazil, only 12.4% of the highway network is made of pavemented roads and 9.1% of planned roads, one of the reasons behind of this problem is the high logistical cost on the paving process. In search of a sustainable economic development – highlighting the environmental damage caused by the extraction and transportation of natural resources – there is a need for new economical viable technologies for the soil stabilization. The following research has as objective analyze the effects of the mix of hydrated lime and red ceramic waste to dry soil to improve the mechanical properties of the soil. The material studied is a sedimental soil from the Guabirotuba Formation, native from the Curitiba region, containing 20% and 25% of red ceramic waste and 0%, 2,5%, 5%, 7,5% and 10% of hydrated lime. The simple compression resistance achieved was of 1991,75 kPa at 28 days, which showed satisfactory to use on the stabilization of the bases and sub-bases for paving.