Is Blue Circle cement Portland cement?

Blue Circle Industries was a British public company manufacturing cement. It was founded in 1900 as the Associated Portland Cement Manufacturers Ltd through the fusion of 24 cement works, mostly around on the Thames and Medway estuaries, together having around a 70% market share of the British cement market.

Who makes Blue Circle Cement?

Iconic contruction brands Tarmac and Blue Circle have been combined to create a UK leader in the building materials sector. Irish-based group CRH has completed its acquisition of the business formerly known as Lafarge Tarmac, of which the two brands were both part, from previous joint owners Lafarge and Anglo American.

Why is cement called Portland?

The inventor Joseph Aspdin, of England, patented the basic process in 1824, naming it for the resemblance of the cement when set to portland stone, a limestone from the Isle of Portland.

Do you add sand to Blue Circle Cement?

Each bag contains the exact quantity for a standard 4 to 1 mix. Just add 2 bags of sand and you'll save time and money because there's no more wasteful leftover cement.

How long does Blue Circle Cement take to set?

Allow 5-10 minutes for the initial set. You will be able to hang a fence panel in as little as 10 minutes!

What is PORTLAND CEMENT? What does PORTLAND CEMENT mean? PORTLAND CEMENT meaning

What strength is Blue Circle cement?

Blue Circle High Strength Concrete (40N) is a premixed strong and hardwearing concrete manufactured from cement, specially selected and graded sand, and 10 mm coarse aggregate. When used correctly it will typically achieve a 28-day compressive strength of 40 N/mm2.

Do you add water to Blue Circle cement?

Bring the dry material to the water and keep mixing, adding water as necessary until uniform in consistency and colour. For both machine and hand mixing, use only sufficient water in the mix to ensure workability and allow thorough compaction.

Has Blue Circle cement got lime in it?

Blue Circle mortar is a ready-to-use M4 (or designation iii) 1:1:6 Cement:Hydrated Lime:Sand mortar.

What is the difference between portland cement and Mastercrete?

Mastercrete cement

An enhanced Portland-limestone cement, for general purpose work, with improved resistance to freeze/ thaw attack. This cement has a lower water demand than ordinary Portland cement and offers a more cohesive mix. Mastercrete is suitable for use in concretes, mortars, renders and screeds.

What is difference between mortar and cement?

Cement is a fine binding powder that is never used alone but is a component of both concrete and mortar, as well as stucco, tile grout, and thin-set adhesive. Mortar is composed of cement, fine sands, and lime; it is used as a binding material when building with brick, block, and stone.

What type of cement is portland cement?

Type 1 - Normal portland cement. Type 1 is a general use cement. Type 2 - Is used for structures in water or soil containing moderate amounts of sulfate, or when heat build-up is a concern. Type 3 - High early strength.

What's the difference between portland cement and regular cement?

White portland cement is made from the same raw materials as regular portland cement, but containing little or no iron or manganese, the substances that give conventional cement its gray color. Some portland cements meet requirements for multiple cement types.

What is the meaning of Blue Circle?

blue circle ?

The blue circle emoji can indicate the sender's mood. It can mean that they are feeling sad or down. It can also mean that they are feeling tranquil and calm, as the color blue itself symbolizes. It can also be used to refer to the sky, sea, or other blue objects.

Which is the best cement for concrete?

OPC 53 grade cement is the best cement for concrete.

What is the best mix for sand and cement rendering?

Most renders are typically made up of sand, water, cement, and lime. A standard ratio used in creating this mix is 6 parts sand, 1 part cement, and 1 part lime (6:1:1). There is no particular type of cement that should be used; any kind will do.

Can you use washing up liquid instead of plasticiser?

Washing-up liquid

Washing up liquid is commonly used as a plasticiser in cement mortar. However, it is thought to affect the long-term structural integrity of the mortar as it can add too much air, thereby creating bubbles. The surfactants in washing up liquid may also produce foam if used in excess.

Can I use hydrated lime for pointing?

Just gauge normal lime with cement

If a mortar with a set is required then a hydraulic lime is more suitable. Building with cement and pointing with lime is also a waste of time technically and has no real advantages over a hydraulic lime mortar, which will allow building and pointing to be done in one operation.

What cement contains lime?

Lime mortar today is primarily used in the conservation of buildings originally built using lime mortar, but may be used as an alternative to ordinary portland cement. It is made principally of lime (hydraulic, or non hydraulic), water and an aggregate such as sand.

What is Hydralime used for?

BUILDING APPLICATIONS

Blue Circle Hydralime is used to improve the plasticity, cohesiveness and water retention of Portland cement mortars and renders. Blue Circle Hydralime may be used with Procem, Mastercrete, General Purpose Cement, Ferrocrete, Snowcrete and Sulfacrete.

What is Snowcrete used for?

Snowcrete is a bright white Portland Cement ideal for architectural uses, providing attractive, eye-catching and durable concrete, rendering and mortar. With the addition of different coloured aggregates or pigments a wide variety of colours and finishes can be achieved.

What happens if you use out of date cement?

The use by date on cement is related to health and safety regulations about 'chromium VI' which can cause allergic dermatitis. After the use by date on the bag we are unable to guarantee that 'chromium VI' is below the required legal limit, which could increase the risk of skin irritation.