Thermal Insulation :: Structural Concrete :: Norlite

Since thermal insulation varies inversely with density, lightweight concrete has better thermal insulation properties than normal-weight concrete. The thermal conductivity, k, for lightweight concrete is usually between 2.5 and 3.6 Btu per hour per inch thickness per square foot per degree Fahrenheit for oven-dry concretes weighing 80 to 100 ...

High Density Concrete Blocks

* Nominal weight and density * All models except V-300 are available in Half Thickness (HT) size MarShield High-Density Block Uses less than half the floorspace of concrete Weeks of construction Takes room off the critical path

What is the highest density concrete ever used commercially

Oct 31, 2010 · Concrete of over 300 pounds per cubic foot has been used for radiation shielding in volume-limited applications (particle accelerators for medical treatment located inside existing structures).

CIP 36 - Structural Lightweight Concrete

CIP 36 - Structural Lightweight Concrete WHAT is Structural Lightweight Concrete? WHY Use Structural Lightweight Concrete? HOW is Structural Lightweight Concrete Used? Structural lightweight concrete has an in-place density (unit weight) on the order of 90 to 115 lb/ ft 3 (1440 to 1840 kg/m ) compared to normalweight concrete with a density in the

Experimental Study on Heavy Weight Concrete

heavy weight concrete is used. The key to heavy weight concrete is the aggregates. High density aggregates are used to get high density concrete. The quality and types of aggregates are the most important factors in High Density Foam

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211.1-91 Standard Practice for Selecting Proportions for

admixtures. This concrete consists of normal and/or high-density aggregates (as distinguished from lightweight aggregates) with a workability suitable for usual cast-in-place construction (as distinguished from special mixtures for concrete products manufacture). Also included is a descrip-tion of methods used for selecting proportions for mass ...

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What is the density of concrete?

Plain concrete is 2200 kg. / cubic meter. R.C.C. is 2400 kg. / cubic meter. These densities are for estimate purpose. Actual density could vary slightly depending on the density of coarse aggregates.

Nominal Weight of Standard Concrete

Aug 12, 2008 · At the other end of the spectrum, heavyweight aggregates, such as hematite, can be used to provide high-density concrete weighing 300 pounds per cubic foot or more. That type of concrete can be called for in applications such as walls that provide radiation shielding or as ballast for bridge counterweights.

Light Weight, Heavy Weight & Normal Weight Aggregates

Based on the bulk specific gravity of the aggregates, the classification is made as Light Weight Aggregates Normal Weight Aggregates Heavy Weight Aggregates These aggregates have a major role in the manufacture of concrete with varied properties. The field application of these aggregates will hence vary based on the properties of the aggregates showed in the concrete made.

Heavyweight Aggregates for Heavyweight Concrete Production

Heavyweight aggregates as it can be seen from the name is an aggregate that posses relatively high density and it is fundamental in a situation that high density concrete is necessary. Generally, aggregates with specific gravity of 2400 Kg/m 3 and higher are considered to be heavyweight.

Lightweight Concrete: Weighing in on the Differences

Standard concrete mixes typically use crushed natural stone as the coarse aggregate in the mix (along with Portland cement, water, and sand). The actual weight may vary slightly depending upon the local stone that is available, but generally, natural stone is relatively dense for its size, adding to the weight of the concrete mix.

High Density Concrete - The Heavyweight of All Concretes

Heavyweight Concrete is made and transported much like traditional ready mix concrete, but due to its high density and weight properties, it is usually transported in smaller amounts. Using heavy aggregates in a mix can create a high density concrete suitable for use in medical and nuclear applications such as radiation shielding.

Materials For High Density Concrete Production

High density concrete can only be manufactured by using various high density natural or man-made aggregates. High density concrete can be used for structural and/or specialised construction purposes. The main use of HDC is in ...

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Experimental Study on Heavy Weight Concrete Using Hematite

density of concrete is based on the specific gravity of aggregates and the properties of the other components of concrete. Hematite, magnetite, limonite, barite, steel punching and shot, etc are some materials which can be used as aggregates in high density concrete. Heavy weight concrete can be designed in the same way as that of conventional ...

High density concrete | Heavy weight aggregate

High density concrete mix design. When using only MagnaDense as a high density aggregate, concrete with densities up to 4.0 t/m 3 is achievable. Mixing MagnaDense into concrete with other aggregates allows you to produce even heavyweight concrete with densities up to 5.0 t/m 3.


ores adequate for concrete heavy weight coating of subsea pipelines. This study deals with another substitute of high density aggregates not utilized as economic ore for other valuable purposes, the hematite-barite ore mined and

High density concrete, high strength concrete and high

Nov 26, 2013 · High density concrete, high strength concrete and high performance concrete. 1. High Density Concrete High Density=Heavyweight Density should be more than 2600 kg/m3 Dens CRETE Offers more strength Can be used everywhere, in all construction practices Resistant to extreme weather

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High Density Aggregates

NSS high density (heavyweight) aggregates are capable of producing heavyweight concrete with unit weights to 250 pounds per cubic foot, and up to 325 pounds per cubic foot with the further addition of NSS graded steel aggregates.

The Differences and Relationship Between Foam’s Density

Since weight is how you deduce foam’s density, you can use weight and density interchangeably here. As density and firmness do not have any consistent correlation, neither will weight and firmness. You can have very firm, low-density foam (light), very soft, high-density foam (heavier), or anything in between.

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Making Heavy Concrete

Use a Heavy (high density) coarse aggregate. Follow a mix design for the strength you want. Then substitute the coarse aggregate (rocks) for something heaver than rock. Hospitals use a very heavy (high density) mix around their x ray rooms, perhaps you can search around and find what that mix design is.

high density concrete

In the first step, the region to be spanned is bridged with precast prestressed concrete elements (8) that are designed as beams and complete permanent formwork to carry the dead load of the bridge, to provide a high density concrete protective shell giving a greater degree of protection against deterioration from the elements and to provide a very high quality of finish and architectural ...

Concrete Density - an overview

When light-weight concrete (density ρ = 500∼1900 kg/m 3) is used for the structure to replace ordinary concrete, the weight of the structure with the same load-carrying capacity is reduced by 20–40%. This is an effective and easy way to deduce dead load of the structure.