3. Prisms analysis of cement samples (MORTARS)

3.1. Table(2). CEM II – Portland cement with additives of limestone

Portland limestone cement	CEM II/A-L, 42.5N
Content of Clinker	80-94 %
Content of the second main ingredient	6-20 %
Content of secondary components	0-5%

3.2. Table (3). Physical properties of cement:

	CEM II/A-L	Ecocem GGBS
Relative density	3.07	2900
Surface	395m²/kg Blaina	428 m²/kg Blaina

3.3. Tabeli (4). Strength class of cement in accordance with PN-EN 197-1: 2002:

Strength class	Early strength after 2 days [N/mm2]	Strength normalized after 28 days [N/mm2]	Initial setting time [min]
42.5 N	≥ 10.0	≥ 42.5 , ≤ 62.5	≥ 60

3.4. Table (5). Chemical characterization of cement CEM II AL 42.5N & GGBS

Składniki	CEM IIA-L, 42.5 N %	GGBS %
CaO	63.67	42.16
SiO2	18.17	35.89
Fe2O3	3.04	0.61
Al2O3	4.11	10.86
Na2O	0.19	0.25
TiO2	0.29	0.76
MgO	1.52	7.13
K2O	0.62	0.37
SO3	3.06	0.11
Insoluble Residue	1.21	0.18
Chloride	0.04	0.02
Na2O Equivilant	0.8	0.37

 

3.5. The materials and preparation of prisms samples

All prisms samples measuring was 40 × 40 × 20 mm.

All tests were carried out in according to EN 196-1.

The composition of cement: 450 kg of cement, 1350 kg standard sand and 225 ml of water.

CEMII/A-L – O’Brien Cement

GGBS – Ecocem Dublin

Professor Pawel Lukowski. Head of the Department of Building Materials Engineering. Warsaw University of Technology

Dr. Eng. Joanna Julia Sokolowska. Department of Building Materials Engineering. Warsaw University of Technology

MSc. Eng. Ali Salih Technical and Quality Manager – Casey Concrete, Gorey Co. Wexford

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Part I – DURABILITY OF CONCRETE CONTAINING GGBS IN EXPOSED TO FREEZING AND THAWING CONDITIONS

1- Abstract 2. Background 3. Prisms analysis of cement samples (MORTARS) 4. Test results of the Prisms 5. Test on Without Air Entrained concrete samples: 6. Strength test results 7. Durability Test

Part II – DURABILITY OF CONCRETE CONTAINING GGBS IN EXPOSED TO FREEZING AND THAWING CONDITIONS

8. Air Entrained Concrete 9. Strength test results of the air entrained concrete samples maturated in tank water 10. Durability Test 11. Conclusions of the study/a> 12. Literature