# pouring a drive way 10' wide with a 90 degree curve

 Forum topic by rf58 posted 04-18-2015 05:26 AM 1146 views 0 times favorited 7 replies
 rf5878 posts in 2995 days 04-18-2015 05:26 AM Topic tags/keywords: question where do i cut score marks in it all my friends are woodworkers and even concrete guys have different ideas is there a rule for this. -- rf58, Illinois

## 7 replies so far

 johnstoneb2560 posts in 1957 days #1 posted 04-18-2015 11:07 AM 8’ to 10’ -- Bruce, Boise, ID Crank50173 posts in 1361 days #2 posted 04-18-2015 01:25 PM What ever spacing you decide on, 10 ft for instance, is to be measured at the outside radius.I would measure the radius from the center point, multiply by pi, then divide by 2. That is the distance around the 90 degree arc. Then divide that distance by 3 or 4 or 5 to try to get close the the 8 to 10 ft distance. Example for a 30 ft outside radius.(30 X 3.1415) / 2 = 47.122 ft.You can see that if you rounded that up to 50 ft it would be 5 sections at 10 ftSo divide 47.122 by 5 and get 9.42 ft.That would be 9 ft – 5 inches. Don’t forget, if you want 5 sections, you need 6 cuts. rf5878 posts in 2995 days #3 posted 04-19-2015 04:22 AM the pie shaped pieces should be like this so if the circumference is 56 ft =672” divided by 6 sections each section at the outside should measure 112 inches.and the inside is 36’ =432 ” divided by 6 sections 72”i will draw that out on the ground ad see what it looks like. -- rf58, Illinois BurlyBob4871 posts in 2050 days #4 posted 04-19-2015 04:30 AM I’m no expert but I’ve done a little concrete. It sure looks to me like a score in the center of that arc would be a good idea. rf5878 posts in 2995 days #5 posted 04-22-2015 02:32 AM -- rf58, Illinois Crank50173 posts in 1361 days #6 posted 04-22-2015 06:26 PM Looks like too many cuts, but I suppose that’s because your arcs are not drawn to scale.Also, you have 6 sections (7 cuts) instead of 5, but I guess you rounded 56 up to 60.If the layout looks too tight in full scale , round down the number of sections. rf5878 posts in 2995 days #7 posted 04-27-2015 05:01 AM WHAT I THINK WE ARE GOING TO DO IS JUST 3 MAJOR SECTIONS WITH THE CALIFORNIA STYLE.USING THE CENTER EDGER AND SAW CUT THE IN BETWEEN SECTIONS. -- rf58, Illinois