WELCOME TO
SPECIALBETONG SVERIGE

Special Concrete Sverige performs renovation and new construction of P-houses, ground reinforcements of buildings, quays, roads and railways throughout Sweden. In addition, we have a unique and patented lightweight concrete called SENAD®HLWC this product enables many unique, cost-effective and environmentally friendly solutions for the above areas.
SENAD® HLWC

SENAD® HLWC

SENAD® HLWC can be described as a foam concrete consisting of air pores. The difference between SENAD® HLWC and ordinary lightweight concrete is that regular lightweight concrete is often mixed with plastic foam instead of adding air bubbles. Our product is put in place in special machines with water, cement and surfactant. An surfactant is a scrubber, a type of dishwashing detergent, but what we use makes the air pores very good.
Example

TRADIONAL BETONG WORK

Apart from our product SENAD @ HLWC, we also carry out more conventional casting, large and small. We have specialized in renovation of parking spaces and built the foundation for northern Europe’s largest gas turbine.
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Why SENAD® HLWC?

check  Eco-friendly

Has no demonstrable impact on the environment as it contains only cement, water, air and surfactants.

check  Pumped

Since our lightweight can contain a high air content, it is relatively easy to pump.

check  Air Containing

We can mix our lightweight concrete with an air content up to 85%, which provides good insulation properties and minimizes ballast requirements.

check  Fireproof

With regard to fire safety, a cement-based product does not burn and our patented lightweight concrete does not burn either by heating or rapid cooling at eg. fire fighting.

check  Hydrophobic

Our lightweight concrete is water repellent and is ideal for quays and locks as it penetrates the water. SENAD® HLWC can also be cast directly onto the water as it flows at lower densities.

Area of use

Foundations

Hardened SENAD® HLWC has a very good relative strength in relation to density. We tailor the density from as low as 400kg / m³ up to 2300kg / m³.

Tunnel & Crack Grouting (liquid fill)

SENAD® HLWC har med gott resultat använts i Hallandsåsen, Ådalsbanan samt Södra länken. Arbetet har då varit spricktätning,berginjektering samt tätning mot vatten.

Low Cost Housing

Between 1996 and 2004, SENAD® HLWC was used in a low cost house (prefab) project in Asia. India and the Philippines were the countries that got the opportunity to use our technology concrete and the project was very successful!

Sliplining and renovation of road and trackbed culverts

One main option to our method with SENAD® HLWC is that you have to shut off the road, railroad and work area, remove the material as well as the old drum and transport it away.

Harbor, pier and lock (water transport) restoration

SENAD® HLWC is a concrete mass that penetrates cracks and cavities and has unique properties for dock renovations.

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Kvalitet och miljöhänsyn har varit och är hörnstenar i vår lättbetongs utvecklingsprocess. SENAD® HLWC har en ej påvisbar inverkan på miljön, då den endast innehåller cement, vatten, luft och tensider (typ vanligt diskmedel).


Att arbeta med materialet SENAD® HLWC främjar kvalitets- och miljöutvecklingen och verkar långsiktigt för att miljön sätts i centrum. SENAD® HLWC kan återvinnas till 100% på ett miljöriktigt sätt.


	





		





	
		
						 
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				Radon och Radontätning			











		
		




	
	
Radon är en osynlig och luktfri radioaktiv gas som bildas när det radioaktiva grundämnet radium sönderfaller. När gasen i sin tur sönderfaller bildas så kallade radondöttrar, som är radioaktiva metallatomer. Radondöttrarna fastnar på damm som vi andas in och kommer på så sätt ner i lungorna.


Radonhalten mäts i enheten Becquerel per kubikmeter inomhusluft (Bq/m3). 1 Bq/m3 innebär att en atom sönderfaller per sekund i varje kubikmeter luft.


De gräns- och riktvärden som finns för radon och andra naturligt förekommande ädelgaser har fastställts i samråd mellan olika berörda myndigheter. Gränsvärden, som är bindande, finns till exempel i Boverkets byggregler och Livsmedelsverkets dricksvattenföreskrifter. Riktvärden hittar du tillexempel i Socialstyrelsens allmänna råd om radon i inomhusluft.


	





		





	
		
						 
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