Progress Presentation - Project I
Transcript: A Journey Start to End Presented by: Joel Lapointe, Michel Vaillancourt, Fraser Mitchell, Isaac Girouard, Mark Landriault, & Errol Brown 3 parts sand to 1 part masonry cement Slowly add water to find smooth consistency Procedure yielded: 15 x Mortar Cubes (Type -S) & 15 x Mortar Cubes (Type-N) Procedure yielded: 15 x Concrete Molds (20 mPa) & 15 x Concrete Molds (32 mPa) THANK YOU Freeze-Thaw Cycles of Concrete, Mortar, & Earth Molds should be filled in 3 equal layers Each layer rodded uniformly 25 times Using a 16 mm diameter x 450 - 600 mm long hemispherically tipped steel rod Determine the de-icing agent with most severe effects Discovered material strength after corrosion Potential research projects for following years Work Experience Casting Procedure(s) Mortar Casting Procedure READY TO TEST! Outcome Fill & Rod Molds Results & Information Experiments & Tests PRECIPITATION Freeze-Thaw Cycle (six months) Salt brine solution Compressive Resistance Testing Prevent deterioration Reduce maintenance costs for Sidewalks Roadways Driveways Foundations Prevent road accidents & disasters Transfer to Controlled Environment Experiment on three types of materials: Concrete Mortar Earth Six-month freeze-thaw period Four types of Salts WEAR FROM HUMAN CONTACT, TRAFFIC ETC. What do you plan to do? Minimum of 20 hours Set cylinders on rigid horizontal surface free from vibration Controlled environment of 20 degrees Celsius (+/- 5 deg.) Tops covered with non-absorptive, nonreactive plate (or a plastic bag) to prevent loss of moisture (with water & admixture) Ensure temperature is maintained Store in a safe location away from disruption Preparation Why is it important? Limitations Remove from Molds Compile all graphs, procedures, photos, documents & results Mix Mortar Remove from Molds Cure Mortar SIMULATED ENVIRONMENT (FREEZER) Cured for one month's time Transfer to Controlled Enironment Ensure temperature is maintained Store in a safe location away from disruption VALIDITY OF RESULTS Concrete Casting Procedure Specimens shall be removed from the molds at the end of 28 days and stored in a moist condition until time of testing Prepare Technical Report ! √ Researched testing procedures & ASTM testing standards √ Acquired advisor √ Acquired materials: - Cement, sand & gravel - Air entrainment admixture - Mortar - Earth √ Acquired workplace √ Acquired freezer √ Acquired salt Cure Concrete Compressive Strength Deterioration caused by the de-icer agent Effectiveness of the de-icer agent Why is it beneficial to the industry? READY TO TEST! WATER RUN-OFF What is your project? 1. Rock Salt (sodium chloride) 2. Sifto Extreme (potassium chloride and calcium chloride) 3. Xynyth Natural (potassium chloride) 4. Alaskan (urea, potassium and calcium chloride) Potassium Chloride (KCl) Molecular Structure Sodium Chloride (NaCl) Molecular Structure Mix cement, gravel & sand Fill Molds
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