Author Archive for pscsydney - page 2

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It is how they both are applied that is the biggest difference between Shotcrete and concrete. Shotcrete is propelled out of a hose onto the surface, whereas traditional concrete is mixed and then pumped/poured into formwork to set in the […]

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Shotcrete is put onto surfaces using what is called a ‘gun’ in the industry. It is a special hose that is pressurized, attached to a nozzle that mixes water with the concrete just before it is shot onto the surface.

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Shotcrete is durable, strong and solid when it has been correctly applied. It is a mixture of aggregate, cement and water, with high bonding ability onto existing concretr, rock or steel framework.

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The machines and equipment needed for Shotcreting is a compressor, pump and mixer with a nozzle and hose that is pressurised, and propels the wet shotcrete out where it needs to be applied. The spray arm enables the hose to […]

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Depending on the surface type, Shotcrete can be put on in layers to reach a minimum of ¼ of an inch, to 1 inch. Naturally basement walls would be applied thicker than say a colour coating for a feature area.

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Once a pool wall has had it’s last layer of wet shotcrete sprayed on, it can take up to 28 days to full seal and harden. This is called the curing process where it not only dries out but strengthens […]

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Shotcreting can be done in wet, rainy weather yes. If it is drizzling and not a steady downpour then rain won’t affect the shotcrete while it sets and hardens. The only time too much water can effect drying and strengthening […]

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It can certainly be much more economical to choose Shotcrete over other poured concrete mixes. However it still has a similar cure time to reach full strength and durability as standard cement, which makes it not usually suitable for piers, […]

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Shotcrete typically will reach it’s full strength in just a few hours. It is a rapid-set type of cement and in just over 15 minutes, it can already be one third of the way dry and setting. This is just […]

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It was actually back in the early 1900’s that Shotcrete was first invented. Carl Akeley was a taxidermist, and needed to fill the models of animals he preserved. So he came up with propelling dry cement through a nozzle, with […]