Construction Materials and Testing (CMT 223) Unit 2 Module: Familiarization with the Apparatus/ Instruments and Equipment Used in Testing of Materials Objectives: 1. Comprehend the importance of sampling and testing to ensure the conformity and suitability of the materials used in construction. 2. Familiarize yourself with the apparatus /instruments and equipment used in testing of materials. Content: A. Importance of Sampling and Testing of Materials Sampling and testing of materials in construction of structures, it is usually done before, during and after construction. Testing’s maybe destructive or non-destructive if the sample or specimen of materials is not rendered unusable or not following the standard procedure for the test. In testing materials proper quality control assurance must be observed such as wearing personal protective equipment (PPE), proper receiving, right storage and preparation of materials. It is possible to predict the properties and strength of the lot from the test results from the sample using statistical procedures. This means maintaining standard conditions for test like temperature, rate of loading, moisture content, etc., as specified for a particular test to guarantee the conformity and standard specifications. B. Familiarization of the Apparatus or Instruments and Equipment Used in Testing of Materials The most important way to ensure the quality and specification of materials used in construction is by sampling and testing; by doing the standard procedure test and using appropriate apparatus or instruments and equipment. For familiarization, shown below are various images of apparatus or instruments and equipment used in testing of materials. 1. Personal Protective Equipment (PPE) used in Testing of Materials Gloves MBV-CMT 223 Safety Goggle Laboratory Gown 1 2. Laboratory Apparatus or Instruments in Construction Materials and Testing Set of Sieves Liquid Limit Device Triple Beam Balance Blount Specific Gravity Bottle Le Chatelier Apparatus Vicat Apparatus Gilmore Needle Apparatus Pycnometer Bottle Graduated Cylinder CBR Mold Cylindrical Mold Slump Cone Apparatus Wire Mesh Bucket Trowel MBV-CMT 223 Scoop Mixing Pan 2 Shrinkage Limit Device Proctor Compaction Test Apparatus Beam Mold Shovel Mixing Bowl Spatula Consistency Apparatus Compaction Factor Test Apparatus 3. Laboratory Equipment in Construction Materials and Testing Sieve Shaker Machine Universal Testing Machine (UTM) for Compression and Tensile MBV-CMT 223 California Bearing Ratio (CBR) Machine Universal Testing Machine (UTM) for Compression Los Angeles (LA) Abrasion Machine Heavy Duty Oven 3 Heavy Duty Platform Scale Universal Testing Machine (UTM) for Flexure Mortar Flow Table Machine Specific Gravity Test Machine Crushing Test Machine for Aggregates Impact Testing Machine for Aggregates Cement Mortar Consistency Test Machine Curing Tank Dorry Abrasion Testing Machine C. Functions of the Apparatus or Instruments and Equipment used in Testing of Materials 1. Personal Protective Equipment (PPE) Used in Testing of Materials a. Gloves are used to protect hands against from possible injury by lifting rough and heavy weight material, scratching or abrasion or chemicals and cold or heat. b. Safety goggle is used to protect the eyes from particulates such as water or chemicals from striking; and from splitting fragments of sample materials. c. Laboratory gown is used to protect the skin from possible accidental spills of chemicals. MBV-CMT 223 4 2. Laboratory Apparatus or Instruments in Construction Materials and Testing a. Set of Sieves are used to determine the gradation or particle distribution of aggregates such as sand and gravel. b. Liquid Limit Device is used to determine the moisture content or water content of soils passing from plastic to liquid state or condition. c. Triple Beam Balance is used to determine the weight of a sample or specimen. d. Blount Specific Gravity is used to determine the specific gravity of liquids. e. Le Chatelier Apparatus is used to determine the soundness of cement. f. Vicat Apparatus is used to determine the setting time and consistency of cement paste. g. Gilmore Needle Apparatus is used to determine the setting time and consistency of cement paste. h. Pycnometer Bottle is used to determine the volume of liquids. i. Cylindrical Mold is used in the preparation and molding of concrete specimen. j. Slump Cone Apparatus is used to determine the workability of fresh concrete mixtures. k. Graduated Cylinder is used to determine the measurement of liquids, chemicals or solutions. l. California Bearing Ratio (CBR) Mold is used to prepare and mold mortar sample to penetration test. m. Wire Mesh Bucket is used to clean coarse aggregates by washing with water. n. Trowel is used to flatten, smoothing, applying or moving granular materials such as cement, sand and viscous materials such as mortar and concrete. o. Scoop is used to move and transfer granular materials to containers or mixing bowl. p. Mixing Pan is used to mix mortar or concrete for testing. q. Shrinkage Limit Device is used to determine the moisture content or water content of cohesive soils. r. Proctor Compaction Test Apparatus is used to determine the relationship between density and moisture content of compacted soil. s. Beam Mold is used to mold or form concrete beam for bending or flexural test. t. Shovel is used to dig, loose, move and transfer granular materials such as cement, sand and viscous materials such as mortar and concrete. u. Mixing Bowl is used to prepare and mix cement paste and mortar sample for testing. v. Spatula is used to scrape viscous materials such as cement and moist soil. w. Consistency Apparatus is used to determine the normal consistency or workability of cement paste or mortar. Compaction Factor Test Apparatus is used to determine the compaction factor and workability of concrete. 3. Laboratory Equipment in Construction Materials and Testing a. Sieve Shaker is a machine used to determine the particle size analysis of granular materials and aggregates from a stack of a set of sieves. b. California Bearing Ratio (CBR) Machine is used to test cohesive materials with a granular or particle size less than 19 mm to determine the penetration strength of subgrade soil and highway subbase. c. Universal Testing Machine (UTM) for Compression is a machine used for testing mortar and concrete specimens to determine the compressive strength. MBV-CMT 223 5 d. Universal Testing Machine (UTM) for Compression and Tensile is a machine used for testing concrete specimens to determine compressive strength and steel tensile strength. e. Los Angeles (LA) Abrasion Machine is used to determine the degradation of the minerals or particles of aggregates. f. Heavy Duty Oven is used to test and dry soils and aggregates. g. Heavy Duty Platform Scale is used for weighing large amount of materials. h. Universal Testing Machine (UTM) for Flexure is a machine used for testing mortar and concrete specimens to determine the bending or flexural strength. i. Cement Mortar Consistency Test Machine is used to determine the amount of water to form a cement paste with normal consistency or degree of wetness. j. Mortar Flow Table Machine is used to prepare mortar and to determine the standard consistency. k. Specific Gravity Test is a machine used to determine the specific gravity and water absorption of a material. l. Curing Tank is used to totally submerge mortar and concrete specimens in water for the strength development and durability with temperature conditions and desired moisture content. m. Crushing Test Machine for Aggregates is used to determine the numerical index of strength of crushed aggregates used for roads and pavements. n. Impact Testing Machine for Aggregates is used to determine the relative value of the resistance of aggregates to sudden shock or impact loads. o. Dorry Abrasion Testing Machine is used to determine the surface wear resistance of aggregates by continuous abrasion or scratching. References: 1. Images are Retrieved from https://www.google.com 2. 3. 4. 5. 6. 7. 8. 9. Materials of Construction by DN Ghose, 1989 Civil Engineering Materials by Technical Teachers Training Institute, 1992 Engineering Materials by Emmanuel F. Nino and Teresita G. Nino, 1983 Materials of Construction 4th Edition by Chandigarah, 1990 Testing of Engineering Materials by Gildey, Murphy & Bragman, 1982 Structural Engineering and Construction 4th Edition Volume 1 by Venancio I. Besavilla Jr., 1999 American Society of Testing Materials (ASTM) American Association of State Highway and Transportation Officials (AASHTO) MBV-CMT 223 6