Dolomite and sandstone that can be found in Latvia, lack the mechanical strength, and for most of the large motorways the aggregates are imported from other countries causing increase of the costs and growth of emissions from transportation. On the other hand, large amounts of Basic Oxygen Furnace (BOF) steel slag aggregates with good qualities are being produced in Latvia and put to waste. During the recent decades, the dolomite sand waste has been accumulating and its quantity has reached a million of tons and is rapidly increasing.
This paper presents the testing results of dense graded asphalt concrete AC 11 mixtures made of four types of aggregate: steel slag, dolomite sand waste, conventional imported dolomite aggregates and conventional local crushed quartz sand that were proportioned to develop a mixture that would satisfy the requirements of permanent deformation and stiffness. Analysis of the results showed that mixes with steel slag and dolomite waste sand or unconventional aggregate combination with dolomite in coarse portion, crushed quartz sand in sand portion and dolomite waste sand in sand and filler portions had high resistance to plastic deformations.
 The European Slag Association: „EUROSLAG”, Legal status of slags. Position paper, Available: http://www.euroslag.com [Accessed: Aug 10, 2011].
 D. Xirouchakis, V. Manolakou. Properties of EAF Slag Produced inGreese: A Constructional Material for Sustainable Growth:.5thInternationa Conference Bituminous Mixtures and Pavements, pp. 287- 297, June 1-3, 2011, Thessaloniki, Greece.
 U. Bagampadde, H. I. Al-Abdul Wahhab, S.A. Aiban. “Optimization of Steel Slag Aggregates for Bituminous Mixes in Saudi Arabia.” Journal of Materials in Civil Engineering., , vol 11., issue 1, pp.30-35. ISSN: 0899-1561Feb. 1999.
 M. Pasetto, N. Baldo. Mix Design and Performance Characterization of Bituminous Mixtures with Electric Arc Furnace Steel Slags: 5thInternationa Conference Bituminous Mixtures and Pavements,, pp. 748 - 757, 287- 297,June 1-3, 2011, Thessaloniki, Greece.
 A. Korjakins, S. Gaidukovs, G. Šahmenko, D. Bajāre, D. Pizele. “Investigation of Alternative Dolomite Properties and Their Application in Concrete Production”. Scientific Proceedings of Riga Technical university. Construction Science Vol 2. Issue 9, pp. 64-71. ISSN 1407- 7329, 2008.
 S. Skinskas, V.E. Gasiūniene, A. Laurinavičius, I. Podagēlis. “Lithuanian Mineral Resources, Their Reserves and Possibilities for Their usage in Road Building”. The Baltic Jaurnal of Road and Bridge Engineering 5(4), pp. 218-228., ISSN 1822-4288, 2010.
 “Road Specifications 2010” approved by Order No 01.01-03/173 of the Ministry of Traffic on 7. Sept. 2009. 239 pp., Available: http://www.lvceli.lv/lv/Files/Publications/629/CELU_SPECIFIKACIJA S_2010_GALA_REDAKCIJA_arTK_23jul09_labojumiem_grafikiem.p df [Accessed: Aug 10, 2011].