I forgot to ask the l/scape supplier how far a 20kg bag goes. If the website suggests that 1 tonne covers 10 to 20 m2, what area would a 20kg bag cover?
Edit : Forgot to add that I'm doing an area of 5100mm x 750mm.
Browse Forums Landscape & Garden Design 1 Aug 11, 2010 5:48 pm I forgot to ask the l/scape supplier how far a 20kg bag goes. If the website suggests that 1 tonne covers 10 to 20 m2, what area would a 20kg bag cover? Edit : Forgot to add that I'm doing an area of 5100mm x 750mm. Built the Eden Brae Cambridge 34 Family with Boston Corner Facade Re: 20kg bags of pebbles 3Aug 11, 2010 6:43 pm If one tonne does 15 m2 then 20 kg would do about 0.3 m2. So for a 5.1 x 0.75 m area, which is 3.825 m2, you would need 12.75 20 kg bags. That is, for your area, you would need 13 bags. Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: 20kg bags of pebbles 4Aug 11, 2010 7:49 pm bel, I'm thinking even for a small area as ours, the no of bags would be a lot Casa2 you're a gem!!! Thanks for working that out So 13 bags x $ 9.50/bag= $123.50. I know nothing ..........so 13 bags ( 260kgs) equals approx 0.25 tonnes ?? Built the Eden Brae Cambridge 34 Family with Boston Corner Facade Re: 20kg bags of pebbles 7Aug 12, 2010 12:06 am Don't be embarrassed, teachers never teach maths properly, they just push you through the text books weather you get it or not is not their problem. I was not a shining example of light so when I did science which includes exponents and other tricky statistical calculations I had it really hard. I was lucky that I had a teacher who could explain complex interactions in such a way that even an 8 year old would understand. So it took 9 years at school to find 1 teacher who knew how to explain things... I still need a calculator... The trick was teaching it in a way that makes the math express a mechanical inheritance. Once you understand that then you can apply a set of logical operations on anything. No teacher taught me anything remotely like that until RMIT. Now that I can express math in the same way I can express a mechanical sequence in English I can use symbols and operators to express a change in one substance to another accounting for electrons, protons, heat and hydrology. Before this time I could not even add up a the mass of a bathtub. We need better teachers before we can have interested and engaged students. BOT... Re: 20kg bags of pebbles 9Aug 19, 2010 9:44 pm You would think one teacher upon approaching cos and tan would explain what it does. I did not know until a you tube video presented its interaction. What is cos? Imagine the driving wheel of a steam engine or the crank of a car engine. The circle of travel in the offset is calculated using cos. Now if some genius teacher had said that I would have a picture of it in my head and what it does and therefore an understanding of its use is. It also does frequency htz and energy waves by which energy and voltage can be graphed and by which earthquakes are measured. Cos. After 5 years at high school I found out its purpose using google.. Google taught me in 4 seconds what a teacher failed to teach me in 5 years. Re: 20kg bags of pebbles 10Aug 19, 2010 9:59 pm Yes, a sine wave can be generated by a point on a wheel and rolling it. A cosine wave (cos for short) is the same wave but starting a quarter of a turn later. And when you divide sine of an angle by the cos of the angle you get tan, which gives you the slope of the angle. Spooky, but true. Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: 20kg bags of pebbles 11Aug 21, 2010 5:05 am Lol @ Redman - yep. Same experience here mate. It's a worry.. |