Types of Rollers Depending upon the project requirement and soil to be compacted, different types of rollers are used for compaction work. The various types of rollers which are used for compaction are: Cylindrical Rollers Sheepsfoot Rollers Pneumatic tyred Rollers Smooth wheeled Rollers Vibratory Rollers Grid Rollers The following types of road rollers are generally … Read more
Dynamic Compaction of Soil The method can be used to improve all types of non-cohesive soils, mixed soil or those with limited amounts of cohesive material, as well as landfill sites such as waste dumps or spoil tips. There are also many instances of refuse and industrial waste dumps which have been successfully treated by … Read more
There are many factors which influence the degree of compaction in the field. Some are compactor dependent and some depend on the soil being compacted. The factors which affect the degree of compaction are given below. 1. Type of soil Type of soil has a great influence on its compaction characteristics. Normally, heavy clays, clays … Read more
Compaction should not be confused with consolidation. At the end of the consolidation and/or compaction process, a closer packing of soil grains results, which leads to increased shear strength and decreased compressibility and permeability. Difference Between Compaction and Consolidation Soil Compaction It is a dynamic process Compaction is almost instantaneous Densification is due to reduction … Read more
Objective To determine moisture content and dry density relationship using heavy compaction or modified compaction method as per IS-2720-Part-8. Apparatus • Metal mould (volume = 1000 cm3) • Balance (capacity = 10 kg, least count = 1g) • Oven (105 to 1100C) • Sieve (19 mm) • Metal rammer (weight = 4.9 kg) Procedure Dry … Read more
The embankments are constructed with locally available soils, provided it fulfils the specified requirements. Procedure of compaction to be adopted will depend on the type of soil being used in construction. General guidelines to deal with compaction of various types of soils for attaining optimum dry density/relative density at minimum effort, have been briefly given … Read more
Factors Affecting Field Compaction of Soil There are many factors which influence the degree of compaction in the field. Some are compactor dependent and some depend on the soil being compacted. The factors which affect the degree of compaction are given below. 1. Type of soil Type of soil has a great influence on its … Read more
Objective For determination of the relation between the water content and the dry density of soils using light compaction. Reference Standard IS: 2720(Part 7)-1980- Methods of test for soils: Determination of water content-dry density relation using light compaction. Equipments & Apparatus Cylindrical mould & accessories [volume = 1000cm3] Rammer [2.6 kg] Balance [1g accuracy] Sieves … Read more