Choksi Laboratories

Building Material

Building material testing involves assessing the physical and mechanical properties of construction materials like concrete, steel, and asphalt to ensure they meet quality standards. This process includes evaluating factors such as strength, durability, and composition through various laboratory tests. The results guide construction professionals in ensuring the materials perform effectively in their intended applications.
Cement(As per Indian Standard: 269 & 1489 Part I & Part II)

Cement is a fine powder made from a mixture of limestone, clay, and other minerals, which, when mixed with water, forms a paste that hardens and binds together inert aggregates like sand and gravel. It is a crucial building material used in construction for creating concrete and mortar, providing strength and durability to structures.

Flyash (As per Indian Standard: 3812)

Fly ash is a fine powder residue generated from burning pulverized coal in power plants. It is commonly used as a supplementary cementitious material in concrete to enhance strength and reduce environmental impact.

Aggregate(As per Indian Standard: 383)

Aggregate refers to a granular material, such as sand, gravel, crushed stone, or recycled concrete, used in construction. It is combined with cement to form concrete, providing bulk, stability, and strength to the mixture.

Cement based white polymeric putty(As per Indian Standard: 17545)

Cement-based white polymeric putty is a construction material used for smoothing and finishing walls. It consists of a blend of cement, white polymers, and additives, providing a durable, water-resistant coating with a smooth, aesthetically pleasing finish.

Paver block (As per Indian Standard:15658)

Paver blocks are concrete or brick units used in pavement construction, featuring interlocking designs for easy installation. These durable and versatile blocks are commonly employed in driveways, walkways, and patios to create stable and visually appealing surfaces.

AAC block (As per Indian Standard:2185)

AAC (Autoclaved Aerated Concrete) blocks are lightweight, precast concrete building blocks with excellent thermal insulation properties, created through a process of autoclaving aerated concrete mixtures. Widely used in construction, AAC blocks offer advantages such as energy efficiency, fire resistance, and ease of handling.

Burnt clay Bricks & Fly ash Bricks (As per Indian Standard: 1077 & 13757)

Bricks are rectangular building blocks typically made of clay or concrete, used in construction for creating walls, pavements, and other structures. They are hardened through firing (in the case of clay bricks) or curing (for concrete bricks) to provide strength and durability.

structural steel (As per Indian Standard: 2062)

Structural steel is a high-strength metal alloy primarily used in construction for framing and supporting buildings, bridges, and other structures due to its durability and load-bearing capacity. Its composition includes iron and varying amounts of carbon and other alloying elements.

High Strength Deformed Steel Bars And Wires For Concrete Reinforcement (As per Indian Standard:1786)

High Strength Deformed (HSD) Steel Bars and Wires for Concrete Reinforcement are specially designed construction materials with enhanced strength and deformability. These bars and wires are crucial components in reinforced concrete structures, providing structural integrity and durability.

construction

Types of tests performed in CLL lab

CementCement based white polymeric puttyStructural steelFlyash
Standard ConsistencyTensile adhesion strengthDimensionsFineness-specific surface in m2/kg by Blaine’s permeability method.
Fineness by BlaineWater retentivityYield StressParticles retained on 45 micron IS sieve (wet sieving)
Setting time Initial & FinalPolymer contentTensile StrengthLime reactivity
Soundness by autoclave and le-chatterDegree of whitenessElongation at breakCompressive strength at 28 days
Compressive strengthCement contentBend test/Charpy impactSoundness by autoclave test
Drying shrinkageCompressive strength, 28 daysChemical compositionChemical composition
AggregatePaver blockHSDS BarsAAC block/Bricks
Deleterious MaterialsVisual InspectionDimensionsDimensions
Aggregate Crushing ValueDimensions and TolerancesYield StressWater absorption
Aggregates Impact ValueWater AbsorptionTensile StrengthWater absorption of rock
Aggregate Abrasion ValueThickness of Wearing LayerElongation at breakCompressive Strength
Soundness of AggregateCompressive StrengthBend testDrying Shrinkage
Particle size analysisAbrasion ResistanceCharpy impactEffloresce
Coal and ligniteTensile Splitting Strengthchemical compositionMoisture Movement
Material finer then 75 micronFlexural Strength/Breaking LoadPullout test-
Clay lumps/ShaleFreeze-Thaw CurabilityRebind-
Soft fragmentColor and Texture--
Scroll to Top