The different material layers as part of a road construction fill all a function so theroad becomes durable, safe, comfortable and aesthetically pleasing. Recently, anew group of construction materials started to play an important role in roadconstruction ? geosynthetics.This thesis addresses the two most common types ofgeosynthetics used in modern road construction, namely geogrids and geotextiles.The most common use of geogrids is reinforcement of poor subgrade by usinggeogrid soil reinforcement, which occurs when road material particles wedge inthe geogrid?s mesh. Geotextiles act partly as a barrier that prevents the finermaterial in the below ground from being mixed with coarser upper material andalso act as a load spreader.Road contractors often face a choice of whether geogrids and/or geotextiles areappropriate in a particular road project and also how much profit the choice mightbring. This phase in the tender calculation process is the intended scope of thisthesis.The thesis deals with both the "hard" cost-function aspects and the "softer" values e.g.

When we, in the turn of the year 07/08 moved to Holma, Malmö,I and my cohabiter immediately joined the self-managementon our tenement yard, partly because we both missed havinga garden since we moved to an apartment, partly becauseof the rent reduction. The aim with this thesis is to examinehow the common outdoor environment in tenement yards isaffected when the tenets themselves are responsible for themaintenance. But also to see what social affects self-managementbrings. The purpose is to increase the understanding of howself-management works in practice and how we as landscapearchitects need to adjust ourselves and our design to create alasting design that works when the tenets are in charge of theirown outdoor environment.I have been studying a number of tenement yards with selfmanagement,both municipal and private tenement houses. I havestudied both their design and their self-management, how it isworking and how it is organized partly trough deep interviewsand also by questionnaires to the tenets of the yards in question.I found three tenement yards with some differences.

A pavement construction designed to cope with the different type of traffic loads; it is exposed to and at the same time it can resist the effect of the climate. A road structure consists of sub- and superstructure which is divided by a boundary known as terrace. During the construction of unbound layers (base course and sub-base course) in the superstructure, it is always ensured that the material meet the requirements for bearing capacity and the degree of compaction. These parameters are controlled by various laboratory tests and control methods. To obtain increased knowledge of the material and improve the quality of the compaction in the field, it is necessary to perform laboratory tests in order to determine material properties.A base course material 0/ 32 mm limestone from Gotland (Hejdeby) was investigated in this study.