NBL Engineering Services Pvt. Ltd.

Soil Testing

Soil is formed by the combination of rock, organic matter and pieces of minerals, air, and water. It is considered to be the skin of the earth’s crust. The quality of soil varies depending on its composition, strength, and type. Poor quality of the soil is one of the critical issues faced by builders. Before starting any construction on land, it should be ascertained that the land is suitable for the planned infrastructure and the soil can bear the load of the proposed building, roads, etc. Problems and errors can be greatly avoided by conducting a study on soil and site characteristics.

The quality of the soil is judged by analyzing those properties which limit a planned use. Various soil and site factors need to be determined in order to check the limitations before constructing a building or a structure. Some of these include: Surface texture, Permeability, Water table, Erosion hazard and Depth of soil and bedrock.

Concrete testing

Concrete is a construction material that is composed of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement aggregate (generally a coarse aggregate that has gravel, limestone, or granite, plus a fine aggregate such as sand), water, and chemical admixtures.There are various methodologies for concrete testing to ensure that it maintains adequate strength and durability. If major repairs are to be executed in the concrete structure, it is often useful to check the bond strength of the material used in the concrete structure.

Mechanical and physical testing is performed on hardened concrete to determine values such as electrical conductance, the compressive strength of a concrete core, cube or cylinder and classify its durability. Mixing design trials are also carried out to ensure the concrete will exhibit values that are within the normal ranges.

Bitumen testing

Bitumen is a mixture of organic liquids that are highly viscous, black, sticky, entirely soluble in carbon disulfide, and composed primarily of highly condensed polycyclic aromatic hydrocarbons. It is principally obtained as a residual product in petroleum refineries after higher tractions like gas, petrol, kerosene and diesel, etc., are removed generally by distillation from suitable crude oil.

Indian standard institutions define Bitumen as a black or dark brown non­-crystalline soil or viscous material having adhesive properties derived from petroleum crude either by natural or by refinery processes.

Concrete mix design

Concrete Mix Design is a method of selecting suitable ingredients for concrete and analysing their relative quantities for the production of concrete. The produced concrete should be made as economically as possible with minimum properties, significant workability, durability, and strength. An accurate determination of mix proportions by using computer data is usually not possible as the materials used are essentially variable and their properties are not assessable quantitatively.

Concrete Mix is an extremely flexible building material which can be exclusively designed for strength and it may range from M10 to M100. A mix selection needs appropriate knowledge of concrete properties as well as experimental data especially for the person who is conducting the mix design. The objective of preparing a design mix is to achieve good quality concrete in the most economical way. Good quality concrete is dense, homogeneous and imparts better strength and durability.

Cement testing

Cement testing is performed to determine if there is alteration/loss of material when in its solid state. Methods of testing include subjecting it to a high temperature to determine loss of material,  compressive strength, hand fineness among other factors to ensure that they meet the relevant international standards.

Ceramic Testing

Ceramic materials possess a combination of properties which make them unique and suitable for high-performance applications. Most ceramic materials are metallic oxides like zirconium oxide and aluminium oxide. Metallic carbides are one of the most important classes of ceramics.

NBL Engineering offers a complete range of testing services for all the construction materials including the raw materials and final products as well as quality control services according to the National & International Standards.

Brick testing

Bricks are categorized as the building blocks of any structural building. Thus, the quality of each and every brick needs to be good in order to avoid any serious damage in the building. A brick is a single unit made from Clay bearing soil, lime and sand or it may also be made up of concrete material.

Bricks are named depending upon their composition such as Burnt clay bricks, Concrete bricks, Sand lime bricks, Fly ash clay bricks and Fire clay bricks.

Tile testing

Tiles are manufactured pieces of materials like stone, ceramics, glass or metals and are considered construction materials. Their major application is for usage in floors, roofs, walls, tabletops and other similar objects. Tiles are categorized on the basis of the applied manufacturing process and are classified as per their water absorption level.

NBL Engineering is proficient in evaluating the performance of glass tiles, acid resistant tiles, ceramic tiles, stones, marbles, slates, limestone along with their respective installations. NBL provides testing facilities for all types of tiles as per various National and International Standards.

Refractory testing services

Refractory testing involves examining heat-resistant materials to ensure their suitability for high-temperature applications, focusing on properties like strength, durability, and resistance to chemical attack and thermal shock

Refractory materials are inorganic non-metallic substances which are composed of thermally stable mineral aggregates, a binder phase, and additives. Refractory substances can withstand a varying degree of severity in terms of exposure to abrasive and corrosive solids, liquids, or gases at extremely high temperatures and are crucial in various industrial applications