The answer is yes, it could explode if the wrong materials were used to build it. Concrete blocks, pea gravel, river rocks and other materials that are often used in DIY fire pits can trap water inside. When they are heated up, this can cause an explosion.
Will pavers crack in fire pit?
A lot of times, DIY fire pits are built using stones and boulders found around the yard, without knowing what their heat rating is. If not suited to high temperatures, these stones can crack and splinter.
Are concrete pavers heat resistant?
Concrete pavers won’t get nearly as hot as brick pavers and dark stones. When the outside temperature is 90 degrees, they will be as hot as 120 degrees. Don’t think a concrete slab will give you the same results, it won’t. There is space between pavers so that heat can be shed.
What is the best base for a fire pit?
Hard rocks like granite, marble, or slate are much denser, and therefore less likely to absorb water and explode when exposed to heat. Other rocks that are safe to use around and in your fire pit include fire-rate brick, lava glass, lava rocks, and poured concrete.
What is the maximum temperature concrete can withstand?
The threshold of significant degradation of concrete is around 65-93°C (150-200°F). For this reason, current codes and industry standards dealing with reinforced concrete structures specify a maximum temperature limit of about 65-93°C (15O-2OO°F) to ensure predictable concrete behavior.
Can you paint cinder blocks for fire pit?
You can paint both new and previously painted cinder block fireplaces yourself, but they require more preparation than other surfaces in your home to ensure the paint adheres to the surface and that it can last as long as possible.