11/25/2020 11:38:38 AM
Comment: Note : Wall height is 1200mm in this question, so form ply is running horizontally.
Waler bar formula. Multiply by 4 for sheets turned sideways not standing up, as there are only 4 (possibly 3 rows if compared to layout in theory module 020103eA page 5) rows depending on the lay out.
Also change the snap ties descriptor above to read "4 (vert) rows of 5 ties per sheet"
2/20/2020 12:00:08 PM
Comment: Pages 4, 5 6, 9, 10 and 11 - Tables 3, 4, 5 and 6 - graphics missing
2/18/2020 10:59:44 AM
Comment: page 26 - slope gain factor - first sentence - suggest: "... or a percentage gain in length that represents ..."
2/18/2020 10:44:29 AM
Comment: Page 17 - last sentence - change BORAT language "absolutely necessity" to "essential"
2/18/2020 10:32:48 AM
Page: 16, 17, and 22
Comment: Page 16 - last sentence above figure 16 - 5th word from end - omit "to" .
Page 17 - 2nd paragraph - should read - "The concrete should always be cast against previously cast fresh concrete and..."
Page 22 - self test answer 7 - "ration" should be "ratio"
2/18/2020 10:25:29 AM
Comment: page 12 - first paragraph - 4th sentence - suggest the following: "The cone is filled with concrete which is compacted by inserting the rod a specified number of times, then the cone is carefully removed ...."
5th sentence - needs change to the following: ".... the top of the cone and the slumped ...."
Figure 9 - Slump test - right hand image - top dimension arrow for Amount of Slump - point of arrow should be to the BOTTOM of straightedge - NOT the top of it.
2/18/2020 10:15:19 AM
Comment: Page 9 – paragraph above the note box – second sentence needs clarified – suggest the following:
“Water that migrates to the surface as excess bleed water is normal but can cause a chalky surface called dusting if it is troweled back into the surface, it must be left to evaporate before troweling begins.”
2/18/2020 10:03:23 AM
Comment: Page 8 - paragraph above Figure 6 - (under note box) - first sentence - should read " ... to two parts cement by weight (expressed...."
2/18/2020 9:59:31 AM
Comment: Figure 5 - rebar in wall drawing should be in same position at left hand side of the wall (inside) - just mirror image that wall right to left. Blowup "A" will also have to be mirrored right to left to match.
2/18/2020 9:51:13 AM
Comment: Concrete Floors - first paragraph - first sentence - add lateral - " .... the needed lateral support ...."
also second sentence two spots to fix - should read "....floor must be thick enough to extend at least 25 mm ......" and ".... provide adequate lateral support."
2/18/2020 9:36:12 AM
Comment: Last paragraph needs clarification - Suggest replacing the first 3 sentences with the following:
"Begin by erecting the inside metal corners and panels then insert ties and lift preformed corner rebar onto the ties then attach the outside panels. Install 2 or 3 additional pairs of panels then check and brace the corner plumb and close up the outside metal corner. Continue standing panels in pairs and inserting rebar as you go until you are 2 or 3 panels from the next corner then complete the rebar, and install additional forms and fillers as needed to close up the forms."
And keep the last 2 sentences.
2/18/2020 8:58:23 AM
Comment: sentence above Figure 50 - Weeping tile . should read "...... with holes or perforations placed around the perimeter ...."
also paragraph below Figure 50 - last sentence omit - holes are not only on one side!!!!!
2/18/2020 8:43:13 AM
Page: 44 and 46
Comment: page 44 - question 13 - 4th word from the end - "rf" should be "or"
Page 46 - question 35 - 7th word from beginning - "wheat" should be "what"
2/18/2020 8:35:23 AM
Page: 44 and 47
Comment: page 44 - Question 12 - change Douglas fir #3 to "#1 and #2" because #3 grade is not marketed anymore and not used in floor systems here. Use a more realistic choice.
page 47 - Question 12 - change answer to 38 x 235
2/18/2020 8:26:40 AM
Page: 11 and 13
Comment: Table 2 and 3 change 2010 NBC to 2015 NBC or just NBC so we don't have to change the number when it changes. (NOTE: there were no changes in these tables in the NBC in the last 2 code version changes)
2/18/2020 8:17:09 AM
Comment: top of page - description box - add wording about the tool possibly firing when the air supply is attached.
"........ has fasteners in it. When attaching the air supply the tool may accidentally fire so point the tool in a safe direction away from yourself and others."
2/18/2020 8:11:07 AM
Comment: Suggest rewording the caution box to read:
“When installing the couplers, the nipple should be attached to the tool and the coupler to the hose. This prevents the hose from whipping around when it is detached from the tool and prevents the tool from being left pressurized and able to fire.”
Also reword the answer to any related self-test question to match.
2/18/2020 8:01:12 AM
Comment: Many students get confused by the language in the "Tolerances" section of this page.
Suggest simplifying it to the following:
"It can be difficult to get a concrete surface truly flat so there is often a Tolerance or allowable variation from perfectly flat that is specified for each concrete pad or floor area. Some surfaces like movie studio and ice arena floors are required to be very flat (high tolerance) while carpeted floors or garage floors are allowed more variation in the surface (low tolerance). Tolerances for flatness are given in millimetres per thousand millimetres (example: 2:1000)
2/18/2020 7:37:48 AM
Comment: Question 4 - "with 5 to 9 workers" should be "with 50 to 99 workers" to match information in Table 4 on page 27 and to match the answer given.
12/3/2019 8:24:27 AM
Comment: Answer for Self-Test question 12 is missing. Answers 13 and 14 are incorrectly labelled as 12 and 13 respectively.
1/1/2019 12:00:00 AM
Comment: In the Estimating Floor Systems Module page 30 figure 25 has the overall dimension of the building at 38' 0". The subfloor calculations for this example and figure 29 on page 35 uses 39'. The calculations on page 35 need to be changed to match the plan for example #3.