Sima1

 It provides reliable and high quality laboratory and in situ technical support concerning the conformity of structure materials in civil works:  aggregates, cement, concrete, grout, flying ashes.  Also, its activities include  concrete and durability technology issues that determine the quality of modern construction (special concretes, special materials such as refractory materials, bentonites, etc.).

 

Main Tests

  • Fresh concrete tests
  • Hardened concrete tests
  • Non-destructive tests of concrete
  • Fibre reinforced concrete tests
  • Water and air permeability concrete tests
  • Aggregates suitability tests
  • Physical and mechanical tests of refractory and insulating materials
  • Bentonite physical tests

 

Main Equipment

  • Concretes and mortars compression - bending machines from 50KN to 3,000KN
  • Drying ovens and furnaces up to 1,400oC
  • Mixers, slump apparatus, air entrainment meter, cubic, cylindrical and prismatic moulds of various dimensions, constant moisture & temperature chamber
  • Full range of sieves according to ASTM and EN standards
  • Los Angeles abrasion machine

 

 Detailed Laboratory Tests and Standards Applied:

SAMPLING OF AGGREGATE FOR TESTING    (ASTM C702) 
SIEVE ANALYSIS OF COARSE AGGREGATES    (ASTM C136) 
SIEVE ANALYSIS OF FINE AGGREGATES    (ASTM C136) 
SPECIFIC GRAVITY OF COARSE AGGREGATES    (ASTM C127) 
SPECIFIC GRAVITY OF FINE AGGREGATES   (ASTM C128) 
WATER ABSORPTION OF COARSE AGGREGATES    (ASTM C127) 
WATER ABSORPTION OF FINE AGGREGATES    (ASTM C128) 
SPECIFIC GRAVITY AND ABSORPTION OF COARSE AGGREGATES    (ASTM C127) 
SPECIFIC GRAVITY AND ABSORPTION OF FINE AGGREGATES   (ASTM C128) 
DETERMINATION OF MATERIALS FINER THAN 75-ΜM (NO. 200)    (ASTM C117) 
RESISTANCE TO DEGRADATION OF SMALL AND LARGE SIZE COARSE AGGREGATES BY ABRASION AND IMPACT IN THE LOS ANGELES MACHINE   (ASTM C131, ASTM C535) 
SAND EQUIVALENT TEST   (ΕΝ 933.08, ASTM D2419) 
SOUNDNESS OF AGGREGATES BY USE OF SODIUM OR MAGNESIUM SULFATE  (ASTM C88) 
MIX DESIGN OF CONCRETE
PREPARATION OF 1 CONCRETE SPECIMEN 
MIX PREPARATION   ASTM C172
SLUMP TEST   (ΣΚ-309, ΕΛΟΤ 521) 
UNIT WEIGHT OF FRESH CONCRETE   (ASTM C138) 
AIR CONTENT OF CONCRETE    (ASTM C231) 
CURING OF SPECIMEN (1 SPECIMEN FOR 28 DAYS)
COMPRESSIVE STRENGTH OF CONCRETE SPECIMENS 
CAPPING CYLINDRICAL CONCRETE SPECIMENS   (ASTM C617) 
CONCRETE WATER PERMEABILITY TEST   (INTERNAL METHODOLOGY) 
CORE SAMPLING OF CONCRETE SPECIMENS   (ASTM C42) 
SHAPING OF CONCRETE SPECIMES   (ASTM C39)
REBOUND NUMBER OF HARDENED CONCRETE   (ASTM C805) 
PULL OUT TEST   (INTERNAL METHODOLOGY) 
REINFORCING BAR DETECTION   (BS1881-204) 
SPECIMEN UNIT WEIGHT   (ASTM C642) 
SPECIMEN CARBONATION    (CEB BULETIN No182) 
PH MEASUREMENT OF BETONITE SLURRY    (API 13Β-1 ARICLE 11) 
MATERIAL COARSER THAN 75-ΜM OF BETONITE SLURRY (SAND CONTENT)   (API 13A, ARTICLE 11.7) 
YIELD OF BETONITE SLURRY   (INTERNAL METHODOLOGY) 
WATER CONTENT OF BETONITE POWDER    (API 13A, ARTICLE 11.10) 
PREPARATION OF BETONITE SLURRY   (API 13A, ARTICLE 11.3) 
VISCOSITY OF BETONITE SLURRY   (API 13A - ARTICLE 11.3) 
FILTRATION OF BETONITE SLURRY    (API 13A - ARTICLE 11.5) 
SIEVE ANALYSIS OF REFRACTORY MATERIAL    (PRE R25) 
PREPARATION OF REFRACTORY SPECIMENS (1 SPECIMEN)   (PRE R26) 
SPECIMEN FIRING AT 110OC    (PRE R13) 
SPECIMEN FIRING AT 800OC   (PRE R13) 
SPECIMEN FIRING AT 1100OC OR 1200OC   (PRE R13) 
DENSITY OF REFRACTORY SPECIMENS    (PRE R27) 
SHRINKAGE COEFFICIENT    (PRE R13) 
FLEXURAL STRENGTH OF REFRACTORY MATERIALS    (PRE R21) 
COMPRESSIVE STRENGTH OF REFRACTORY MATERIALS    (PRE R27) 

 

 

 

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