SPECIFICATION FOR COMMON BURNT CLAY BUILDING BRICKS (IS-1077-1992) Suryakanta | April 22, 2014 | Brick, Materials | 1 Comment General Quality Bricks shall be free from cracks and flaws and nodules of free lime. Bricks shall have smooth rectangular faces with sharp corners. Bricks shall be uniform in colour. Frog size of a hand moulded brick having height of 90 mm or 70 mm shall be as per the figure shown below. Frog Size for Common Burnt Clay Building Bricks Dimensional Specification Dimension for Modular Bricks Length (L), mm Width (W), mm Height (H), mm 190 90 90 190 90 40 Dimension for Non-Modular Bricks Length (L), mm Width (W), mm Height (H), mm 230 110 70 230 110 30 Physical Requirements Compressive Strength Compressive strength of any individual brick shall not be less than the minimum compressive strength for the corresponding class of brick. (See table below) Water Absorption Shall not be more than 20% by weight up to class 12.5 and 15% by weight for higher classes. Efflorescence Shall not be more than ‘moderate’ up to class 12.5 and ‘slight’ for higher class. Classes of Common Burnt Clay Bricks Class Designation Average Compressive Strength N/mm2 Kgf/cm2, (approx) 35 35 350 30 30 300 25 25 250 20 20 200 17.5 17.5 175 15 15 150 12.5 12.5 125 10 10 100 7.5 7.5 75 5 5 50 3.5 3.5 35 Share this:EmailPrintMore Tags:Brick Specification, QA & QC Related Posts 9 TEST TO CHECK QUALITY OF BITUMEN FOR USE IN ROAD WORK 23 Comments | Sep 11, 2015 12 BASIC QUALITY REQUIREMENTS OF GOOD BUILDING STONES 8 Comments | Jun 26, 2015 WHAT ARE THE EFFECTS ON CONCRETE DUE TO SEGREGATION? 2 Comments | Apr 6, 2014 WHAT IS THE GRADING LIMITS FOR FINE AGGREGATES? 12 Comments | Jul 3, 2014 About The Author Suryakanta Geotechnical-Material Engineer. You can follow me on Instagram. You can connect me on Google +. To know more about me just visit AboutMe One Comment Rashmi March 31, 2017 Reply how can i find burnt bricks dimension with proper method for laboratory purpose ? Add a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment:* Notify me of follow-up comments via e-mail address Name:* Email Address:* Website: Save my name, email, and website in this browser for the next time I comment. Notify me of follow-up comments by email. Notify me of new posts by email.