wheel weight advice

spall12 Posts: 5
edited June 2014 in Workshop
I have a 2013 scott speedster

I have owned it for nearly a year but I keep getting spokes snap on my rear wheel. Im guessing this is down to my weight as I am 18 stone.

I have 24 spokes I am thinking I need to buy a stronger wheel does any one have any suggestions ? Im doing around 80 miles per week on normal roads.

Do I just need a wheel with more spokes ? or can anything be done to my existing wheel to make it stronger ? I dont want to spend a lot of money.

Im newish to cycling so any help would be great