CEM II/A-LL 42.5 N
Composition:
TAPP Portland limestone cement CEM Il/A–LL 42.5 N is a hydraulic binder according to EN 197–1.
The main components of TAPP CEM Il/A–LL 42.5 N are Portland cement
clinker brick and a selected limestone with high purity. Calcium sulphate is added to
control hardening.
Strict production control throughout the production process ensures an even quality
at a high level.
Properties:
The main advantages of TAPP CEM Il/A–LL 42.5 N are in the fresh concrete
area. Fresh concrete holds together well, is supple and therefore easier to
process and pump. The good water retention prevents bleeding of the fresh
concrete.
This improves the appearance of exposed concrete surfaces.
TAPP CEM Il/A–LL 42.5 N has a low chromate–content. Addition of a chromate
reducer brings the content of water–soluble Chrome VI down to < 2 ppm.
Use:
TAPP Portland limestone cement CEM Il/A–LL 42.5 N can be used to
produce any concrete according to DIN EN 206–1/DIN 1045–2.
TAPP CEM Il/A–LL 42.5 N is also approved for concretes with a high frost and
thawing salt resistance.
TAPP CEM Il/A–LL 42.5 N has the following areas of use:
Premixed concrete industry
Concretes made using TAPP CEM Il/A–LL 42.5 N will remain processable and
compaction–capable well for a relatively long period of time.
Screeds
Screed mortars made with TAPP CEM Il/A–LL 42.5 N can be transported very
well, compact very well, can be smoothed well and do not emit any water.
Concrete additives:
The addition of concrete additives is permitted according to DIN EN 206–1/DIN
1045–2 when they comply with the relevant provisions or when subject to general
building–supervisory approval.
Approved concrete additives must only be used subject to the conditions named in
the approval notice.
When producing pre–stressed concrete according to DIN 1045–1 with direct
composite, only fly ash and silica dust or inert rock meals according to DIN EN
12620 as well as pigments proven not be to harmful for pre–stressing steel must
be used as additives.
An initial test according to DIN EN 206–1/DIN 1045–2 is required when adding
concrete additives.
Concrete admixtures:
The addition of concrete admixtures is permitted according to DIN EN 206–1/DIN
1045–2 when they comply with the relevant provisions or when subject to general
building–supervisory approval and are used subject to the conditions named there.
An initial test according to DIN EN 206–1/DIN 1045–2 is required when adding
concrete admixtures.
Quality monitoring:
TAPP Portland limestone cement CEM Il/A–LL 42.5 N is subject to internal
monitoring in our works labs.
Delivery:
Loose in the silo train and packed in bags with a content of 25 kg.
Storage:
TAPP Portland limestone cement CEM Il/A–LL 42.5 N must be stored dry and
protected from moisture.
Cited provisions:
DIN EN 197–1 Cement
Part 1:
Composition, requirements, conformity criteria of cement
DIN EN 206–1 Concrete
Part 1:
Specification, properties, manufacture and conformity
DIN 1045–1, 2 Load–bearing structures of concrete,
reinforced concrete and pre–stressed
concrete,
part 1: Dimensions and construction
Part 2:
Concrete specification, properties, manufacture and
conformity application rules for DIN EN 206–1
DIN EN 12620 Rock grains for concrete
