Mechanics Properties of the Lime-Steel Slag Stabilized Soil for Pavement Structures

Abstract

Mechanics properties of lime-steel slag stabilized soil for pavement structures are investigated. Firstly, the chemical composition of the fine grain steel slag is analyzed by spectral analysis test. In view of the materials compositions, 5 kinds of mix proportion projects are defined. Compaction tests of all mix proportion projects are carried out in different water conditions to obtain the optimum moisture contents. Then the optimum mix proportion project is demarcated by the unconfined compressive strength test and the compression rebound modulus test. Finally, the pavement structures design for a highway of lime-steel slag stabilized soil road sub-base is made. As comparisons, the pavement structures of other types of lime industrial wastes stabilized soil road sub-base are computed. It is shown that lime- steel slag stabilized soil is suitable for flexible pavement or semi-rigid pavement because of its good strength and rigidity which can effectively reduce thickness of the lower pavement and basic deflection.

Electric arc furnace slag and its use in hydraulic concrete

“…Researchers now face the task of finding the most efficient and appropriate techniques for their reuse [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. Several investigations on the re-use of steelmaking slags have been published over the last decades; some of them concerning mortar and concrete (rigid-stiff matrices) , and mixtures with granular soils (compliant-flexible and porous matrices) [44][45][46][47][48][49][50][51][52][53][54][55][56][57][58].…”

Mechanical Characterizations of Oxidizing Steel Slag Soil and Application

“…Thus, they can be used for soil improvement purposes such as stabilization [17,36]. The static and cyclic behaviour of steel slag mixed stabilized/ cementitious material has been studied in the literature [18]. Results from several cementing systems containing steel slag indicate Portland steel slag blast furnace slag cement has the advantages of lower energy squander, better durability, lower hydration heat evolution, and higher later strength development than conventional cements [19].…”