Our 2014 Pour Day for Concrete Canoe went well, with three layers of concrete and two layers of carbon fiber grid reinforcement going into our homemade mold in about ten hours of work. Roughly fifteen members helped out including a few dedicated non-canoe-team helpers. We finished off the bulkheads, so the only remaining concrete placement will be for the edges and any patches.
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2nd General Meeting & LA YMF Student Roundup
We held our second general meeting of the semester and hosted the ASCE Younger Members Forum Student Roundup, with several other universities in attendance.
Lots and lots of scrumptious food from Pasta Roma. Yum! Getting ready for our meeting! Everyone seems to be enjoying the food! Berkeley and Alice are busy preparing their notecards for something awesome! A networking activity! So that’s what the notecards were for! Practical, helpful, and most definitely fun! Lots of good conversations are to be had at our general meetings! Our Concrete Canoe team is going to be amazing this year. Be sure to talk to Jake and Nick to get involved! And check out that theme! Planets! Whoa! Our bold and fearless leader, the president of our chapter, Elise! Yay! We had a great time at the YMF Student Roundup as well! We hosted many other schools from the region, and got a chance to meet some young professionals currently working in the civil field. It was so much fun! Lots of interesting conversations! Be sure to join us next semester! We’ll be looking for you!
PSWC Day 3: Steel Bridge & Geotech
The final day of PSWC 2013 included the Steel Bridge competition, the Geotechnical competition, Concrete Bowling and Horseshoes, the Soccer tournament, and the award ceremony.
Steel bridge photos are by Lance Hill.
The first competition of the days was concrete bowling/horseshoes. We were disqualified from bowling because we didn’t know there was a weight limit, and we didn’t have enough team members anyway, so we headed over to the horseshoes event. We won one point in horseshoes, with only one concrete horseshoe breaking, beating our direct opponents 1-0! Meanwhile, the steel bridge competition was beginning at Pardee Plaza The steel bridge team talks with the judges. The team strategizes The clock starts! The team assembles the bridge. Another view of bridge assembly, Final assembly. Judges evaluate our work. Our cheering section! The team adds the load to the bridge loading the bridge loading the bridge loading the bridge loading the bridge The bridge is evaluated, with Mudd Hall in the background Our bridge team captains discuss the competition the team rests during judging The bridge team poses in front of Mudd Hall Team members pose on the bridge Meanwhile, the Geotechnical design competition occurred at e-quad. Our team prepares for competition. Since we were hosting, several USC ASCE members were recruited to aid in judging. Our team prepares to cut up their paper. Our team at work. Other schools load their designs with sand. The competition involves creating a retaining wall out of paper that can hold both static and dynamic loads. The CBU box, just after its failure during dynamic loading. Our team begins to load the 500 pound of sand into the box loading sand There’s a strategy to ensuring the sand settles an condenses as much as possible. Another school places their wall into their box. Our team continues loading The competition had many onlookers, with four schools competing at a time. We finish up our loading. Scoping out the intended position of the static load. When we took the box side off, our wall held! The wall held well with only minor leakage past the one-minute deadline Then it failed very soon after, before additional load could be applied. However, we did much better than in past years The 2013 Geotech Team in competition at PSWC While each team was responsible for filling their box with sand, we had to move it back into a pile after every school finished since we ran the event. Our team poses with their technical board. Other teams compete Other teams compete Other teams compete Other teams compete the competition from afar Other teams compete Other teams compete A very successful design! We were in a pretty nice spot for the competition Some schools brought huge cheering sections After the competition, we had to carry all of the sand back out. The bricks got some nice fresh sand between them After the award ceremony in the evening, the environmental team poses with their first-place trophy All of the USC ASCE 2013 PSWC participants after the award ceremony.
PSWC 2013 Day 2: Canoe Races
Race day was a blast! In addition to the canoe races, the volleyball tournament, impromptu, mystery event, and surveying competition were held today, all at Santa Fe Dam. And, all 1,000 conference participants were treated to Doc’s cooking for lunch.
Photos by Lance Hill and various USC ASCE members (sorry, too many to credit individually).
Once again, we greeted KAP at 5am. Fortunately, we had already packed everything for race day. Once we got to Santa Fe Dam, the canoe went straight into the water. It floats! Swamp test: completely submerge the canoe to prove it can resurface. Our canoe floats too well to swamp… Bailing the water from the canoe after the swamp test. Canoe on the water Getting ready for races. First team goes out. Can you find our canoe? (The yellow boat is the lifeboat, not the canoe) One race down, four to go. The canoe’s holding up remarkably well. We discovered a fairly large crack that formed in transit. But it hadn’t propagated after the first race. Heading out for the men’s slalom/endurance race. Canoe still looks great. Women’s sprints. We were up against Cal Poly SLO in all of our heats… Our canoe weighed in around 400 pounds, making straight steering nearly impossible. SLO’s canoe was about 50 pounds. Meanwhile, the volleyball tournament was happening, along with other events. Oscar serves the ball. We were somewhat competitive in the volleyball tournament but ended up losing our first match. The lunch team prepares. Doc (lesser known as Professor Wong) was recruited to cook for everyone. Doc butchers slab after slab of meat and chicken. 1,000 hungry engineers await Doc’s cooking. Doc’s excellent lunch was a highlight of race day. Afterword, Doc was unable to type our class notes for days because his hands were sore from butchering hundreds of pounds of frozen meat. The canoe’s still solid. The coed team heads out for our last race of the day. This is the first time in several years that our canoe has made it all the way to the last, coed race. Our senior leaders raced together for the first time. Lining up at the starting line. The coed race. Coming in from the coed race, canoe still intact. Three other schools dropped out throughout the day due to broken canoes, including one that split completely in half mid-race. Our canoe made it all the way! Our coed race team prepared to disembark. Some water filled into the canoe during the races, but not much. Thomas prepares to throw heasitant canoe captain Erin into the water after the last race. Erin: “no! no! no! no! no!” Everyone’s thrilled with our canoe’s success. We brought the canoe out of the water to prepare to load up. It takes the entire team to move the canoe, seeing as it’s around 400 pounds. The canoe all ready to head back to USC. But, upon arrival, we discovered that the ride home caused severe dual cracks. The canoe cradle bent severely under the weight of the canoe, and didn’t properly secure it. A closer look at one side’s crack. The damage ocurred right in the middle of the canoe. Since it’s so hard to move the canoe back to the basement, we unloaded to the pavement. The canoe’s final resting place.
PSWC 2013 Day 1: Canoe & Bridge Aesthetics
The highlight of PSWC day 1 is the concrete canoe and steel bridge aesthetics competition. Since we’re hosting PSWC this year, the event took place at the heart of the USC campus, in Alumni Park. Various other events took place today, including the Environmental Design competition.
We’re all thrilled to see KAP at 5:30am KAP was bustling with activity at this early hour The bridge is ready for display We had to fill 100s of gallons of water for the environmental competition, since we’re hosting The environmental system heads up the lift Erin rides a cart past Tommy Trojan. We had to get the cart back to KAP for another load of stuff somehow… Pulling water to Pardee Plaza for Environmental Competition Admiring our just-re-stained, barely finished canoe cross section while waiting for the lift The Steel Bridge rides up the lift EVERYONE had to be at KAP at 5:30 since Canoe, Bridge, and Environmental all had events starting at 7am. Oh, and did I mention we’re hosting? Moving the canoe. I’m not getting into the process of getting it up on the lift… Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Rolling the canoe from KAP to Alumni Park Stopping by the environmental competition to borrow tape. The team prepared extensively for the competition this year We also had turn all of that water into wastewater… since we’re hosting… Canoe, up on the stands, ready for aesthetics work Steel Bridge team assembles the bridge in alumni park Steel Bridge team assembles the bridge in alumni park Setting up for aesthetics. Setting up swords under the bow and stern. Our stuff, with Cal Poly SLO’s in the background. Their canoe budget is about 10x ours. Many teams have lots of money for aesthetics, so they can create elabotate themes and amazing stands. We did pretty good with pretty much nothing. As you can see by the lack of people on Trousdale, it’s still before 8am. Assembling the bridge. Our bridge, in front of SLO’s setup. Our canoe stand features the trojan values and images that represent USC culture. Our theme, SC Traveler, is in honor of our school since we’re co-hosting PSWC this year. Our display board came out pretty good this year. Bridge, Canoe, ready for judging. The Canoe and Display. Post-judging, the display is left up for viewing all day. It’s still just 9:30am. Back at the environmental competition. Our team talks with the environmental judges. Back to supervise the canoe in the afternoon. Now that the sun’s out, our cardinal and gold bridge and canoe really shine. Thomas explains USC ASCE to campus passers-by. The Canoe in front of Doheny Library. Erin, Concrete Canoe Co-Captain, poses with the canoe Erin, Concrete Canoe Co-Captain, poses with the canoe Sian Poses with the canoe Our Display from another angle Our Display from another angle Our Display from another angle Our Display from another angle Our Display from afar Cal Poly SLO Canoe, front/right, our canoe, back/left The Steel Bridge The Steel Bridge The Steel Bridge Our other canoe co-captain is studying abroad in South Africa this semester. But he’s with us in spirit, and is pictured in the leftmost circle on our canoe stand. The Steel Bridge The Concrete Canoe Cutaway Section looked better and better as the day wore on, as the hours-old concrete cured… The Steel Bridge Time to disassemble the aesthetics display and get everything ready for tomorrow’s races. Cleaning up. The steel bridge has once again been condensed to fit onto a single cart. Clean up from afar. We ran over to KAP to start loading the truck with stuff for race day (to be held at Santa Fe Dam). Since we’re co-hosting, and in charge of lunch, we need to load tons of drinks and stuff in addition to the canoe. Stuff waiting to ride up the lift. Lots of drinks, and canoe paddling materials, await moving from the lift into the truck. Where’s the food? We have a special lunch planned. Loading stuff into the truck. Loading stuff into the truck. Back at the Canoe. We’re the only ones left. One canoe, in Alumni Park. Ready to load the canoe in the truck, we realized we need to cover some exposed reinforcement. So, actually we had to make another last-minute concrete patch mix. THIS is the latest we’ve ever put new concrete on the canoe, but at least it’s only a little. The bridge rides back downstairs, and we’re ready to collapse, then get up at 4 again tomorrow morning.
Mold Removal Fun/Nightmare
Unfortunately, we ran into some snags with our mold removal process. The foam-release agent didn’t work, so the mold bonded to the concrete and it took three days to get it off… At least we didn’t have a male mold!
End of Mold Removal Day 1 Begin Day 2 Yes, we’re digging around under the canoe here #rollingaroundinfoamonthefloor Day Three Ready for the big move to elevate the canoe on the stands Removing the last chunks with a hot wire
Cross-section Pour
We need to make a cross-section of our canoe showing the three layers of concrete and two layers of reinforcement for our canoe display, so we did a mini-pour-day. The one section took only about 90 minutes and just a few people; much more efficiently than pouring the actual canoe.
Meanwhile, the canoe’s almost ready to de-mold… Placing Concrete A low angle of the full canoe Another creative canoe angle Working on the second layer of the section Dry concrete elements await mixing We filled a few cylinders to strength-test our mix one last time Packing cylinders. We ended up with a sizable amount of extra mix. The finished cross-section.
Bulkhead & Patch Day 2013
The canoe wants bulkheads! First batch of mix Trimming bulkheads, and cleaning up Patching the top edge of the canoe Fitting, trimming, fitting, trimming… We started running into a lot of balloons in our trimming… Placing concrete patches Cleaning out the stray foam pieces Edges look good One bulkhead done! Erin: we’re going to need to take like six inches off the top.
Nick: okay, I’ll just go for it.
Both: uh, there go all of our air pockets…Bulkhead/swiss cheese We had a couple leftover balloons to put inside popped balloon pockets Mixing another batch of concrete We ended up stuffing the balloon pockets with the foam we chopped off Still mixing… Patching done, ready for bulkheads! Bulkhead patching almost done I guess it could look worse… We still had to place the third layer of concrete on the ends under the bulkhead Wait, our bulkheads are both 6″ too long? … let’s chop them down more… Fitted bulkhead Packing in the bulkhead Placing this goes way faster than the rest of the canoe One down, one to go Starting bulkhead#2 One more mix! Cleaning up Finished canoe bulkheads look good And the humidifying setup is reconstructed. DONE.
Canoe Pour Day 2013
Photos by Nick Halsey, Erin Khan, and Lance Hill. Click on an image to see it full size and scroll through them.
Trimming the reinforcement in the mold Attempting to assemble the (male) mold cutouts… The 2nd layer of reinforcement standing by on the male mold Last-minute mold-cleaning Dry concrete is awaits mixing The madness is about to begin… Frantic concrete mixing Deliberating over bow design Packing the first layer Adding the first section of reinforcement packing the second layer, over reinforcement Thinking break… The canoe team places concrete into the canoe mold during the concrete canoe pour day, 2013 Ordering food! Starting to place concrete over the second layer of reinforcement We used some spare bricks to hold the reinforcement in place while we mixed more concrete. Brief break, waiting for more concrete to lay over the 2nd layer of reinforcement. Waiting for more concrete for the last layer Packing in the last layer. The canoe is poured! Now we prep the concrete canoe for curing, a 4-week process in total. We needed the whole team to construct the canoe’s plastic shell The canoe will cure in this sealed, humidified shell for the next week.
2013 Canoe Prep: Mold & Reinforcement
Finishing up the mold and preparing the reinforcement the night before pour day:
The mold after the second stage of sanding. We eventually realized that the mold glue bonded best vertically. Waiting for glue to dry so we can tape the bigger mold chunks together… the cinder blocks help apply pressure to bond the mold Arranging the mold into pour-position The positioned canoe mold is taped together We needed to do some final sanding to account for the adjustments from the mold block positioning changes after gluing Laying out reinforcement We went with two layers of reinforcement, three layers of concrete this time One layer is positioned the long way in two big overlayed strips, the other in seven smaller strips across