in this video we are going to break up this concrete base this base used to be
covered by a conservatory but that has been removed and now the base needs
removing you can see at the corner that we have had an exploratory dig to see
how thick the concrete is
if you are thinking that perhaps you can do this using a normal breaker, well you
probably could do but it will take a long time
anyway for this job we need something a little bit bigger I'm now on the HSS
website to see what breakers they have available they seem to up a few and saw
telephone my name is branch which is in the next town
I have arranged to collect a Hilti TE2000-AVR this is a great piece of kit and
only weighs about 15 kilogram so it's light enough to be used all day
this came supplied with a trolley a chisel and a point before using it
we're just going to apply some silicone grease to the end of it before pulling
back the collar and inserting the point into the machine before breaking any
concrete you are going to need some PPE or personal protective equipment you
will need steel toe cap boots, goggles dust mask, gloves and ear defenders you
can get an optional dust extraction unit for some breakers, this breaker is 110
volts so you will need a transformer it's also important the people nearby
wear PPE as the bits of concrete and tile can travel a considerable distance from
start if it is it took just over two hours to break up the base completely
I'll speed the video up in places to make it a bit more interesting there are
two of us breaking up this base so you might see the pants and foot wear change
when the other person is having a break I've reduced the volume of the breaker
for your viewing pleasure we are starting at the edge and working
backwards breaking the concrete into small bits as we go if you try to break
off too large of a piece or if you try starting in the middle there is a chance
that you will get the point or chisel stuck because the tiles are still on top
of the concrete we're going to have to break through those then the concrete as
it is impossible to remove them this concrete is approximately five to six
inches deep and this roughly 10 square metres
because this breaker is only 15 kilogram it is very easy to use but
there is no need to press down on it just let the machine do the work this is
much easier to use than a pneumatic version which you often see being used
by road workers you will notice that this concrete is not steel reinforced if it
is you will also need an angle grinder
we originally started off using the point but as we move closer to the
house the concrete was easy to break and so we then use the chisel
it's best to experiment using the point and the chisel to see which works best
for you
now we are getting close to the French doors it is a good idea to put something
there to protect them, so some bits of plywood have been taped in position
you may now notice that the concrete is breaking up much easier this is
probably due to the mix of the concrete
if you look at the right hand side you can see that the concrete is grey which
indicates it has the correct amount of cement in the mix but to the left of
the picture the concrete is slightly red indicating that there is less cement and
more some that in that mix in a future video I'll show this was removed and
moved to a skip which is not as easy as you might think before taking this back
I'm going to clean it by vacuuming the ventilation slots and then by wiping it
down with a wipe or a damp cloth never use chemicals as it might damage the breaker
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