Doc. dr hab. Magdalena Borys

Mgr inż. Joanna Rycharska

Influence of frost penetration on resistance to compression of suspension hardening in anti-filtration slurry-walls

The material of slurry walls in river levees in order to satisfy role, have to be resistant on outside factors also frost penetration. This resistance decide on compressive strength and indirect about stability river levees. This article present laboratory tests connected with the influence of cycles frost penetration on selfMagdalena hardening slurries compressive strength. The tests were performed for samples of two materials i.e. used for slurry walls build by deep soil mixing method and cut-off method. The results of tests shown that self-hardening slurries undergo a deformation and destruction under frost penetration influence, which result is strength decrease of slurry walls material. The highest decreases were observed in cycles frosting and defrosting samples in full water-saturated conditions. ...

Dr inż. Piotr Filipowicz

Doc. dr hab. Magdalena Borys

The mechanical parameters of mining waste from Lublin coal carreerconsidered as material for leveles hydrotechnical structures

The article presents the properties of mining wastes from the Bogdanka Mine in Lubelski Coal Basin. Most important geotechnical parameters, which should be known in designing engineering embankments are discussed in details. These parameters are: grain size distribution and shear strength of soil. The water content, optimum moisture content, maximum dry density of solid particles are also presented. These parameters will be characterised in relation to the different storage time. ...