CE-Concrete lab

 | Post date: 2020/01/11 | 
Concrete and building materials laboratory
 
Head: Nematollah Bakhshi
Email: nbakhshiaut.ac.ir
 







 


Technician: Abdolhassan Pirniazadeh








Technician:Hafezeh Shokrani
Telephone: +98(21)64543054-5
Address: Concrete and building materials laboratory, Ground Floor, Building No. 1, Department of Civil and Environmental Engineering, Amirkabir University of Technology, Hafez Ave., Tehran, Iran


History
 
Amirkabir University of Technology's Concrete and Building Materials Laboratory, ready to provide concrete and laboratory tests to meet the need for small and large-scale construction projects, in a variety of laboratory and workshop experiments, Technical Service announces.
 
Tests and services to industry
 
A series of materials tests, including cement and aggregates, water, additives and pozzolans, as well as concrete and concrete mixing design experiments are as follows:
 
Cement physical and mechanical tests
 
Normal Concentration Determination - Cement Retention Time - Cement Mortar Compressive and Tensile and Bending Strength determination - Cement Softness Determination (Blaine).
 
Aggregates physical and chemical tests
 
Aggregation - moisture content and water absorption rate Determination, specific gravity, abrasion resistance (Los Angeles), determination of alkali reaction potential of aggregates - Determination of impact and crushing resistance - Determination of elongation and torsion.
 
Concrete Test Set - Overview
 
Preparation of concrete mixing design, determination of compressive strength of concrete, determination of tensile strength of concrete (half-life), determination of slab and fresh concrete air content and fresh concrete sampling at hard concrete core and non-destructive concrete tests, including: ultrasonic, Schmidt hammer, Determination of carbonation penetration depth, corrosion potential of reinforcement and determination of chloride and sulfate content and concrete modulus of elasticity.
Other important activities of this laboratory include research on specialty concrete, northern structural and non-structural lightweight concrete, heavy concrete, self-compacting concrete, Roller-compacted concrete, cementitious synthetic stones and the effects of additives and pozzolans on concrete.
Other important activities of this laboratory have been the design and implementation of national concrete competitions at universities across the country and its holding of five courses in collaboration with the laboratory at Amirkabir University and two courses at other universities.
The laboratory also offers its services in concrete research and research projects in the form of master's and doctoral dissertations.
 
Equipment
Item
Device name
Description
1 Concrete coring machine With the ability to core from concrete and reinforced concrete with a diameter of 50 - 75 - 100 and 150 mm
2 Temperature control room (38 degrees) Long-term alkaline reaction test
3 Water infiltration device in concrete Depth determination of penetration  in concrete
4 Pundit (Ultrasonic(
 
Usability to determine the uniformity of concrete in one member or between different members of the structure - Detection of cracks and other failures such as pores - Measurement of changes in concrete properties over time - Estimation of modulus of elasticity and dynamic Poisson coefficient
5 Vee-Bee test To determine the workability of low workability concrete
6 Schmidt's hammer To determine the uniformity of concrete in a structure and to estimate its compressive strength
7 Autoclave For cement expansion experiments and accelerated resistance under high temperature and pressure
8 Concrete Grinding Machine With the ability to powder materials for chemical testing
9 Shaker (gravel) For grading of coarse and fine aggregates
10 Shaker (sand) For grading of coarse and fine aggregates
11 Mortar Stretcher Usable for determining the tensile strength of mortar
12 Air pump Public use
13 20 ton press machine Determination of compressive strength of cement mortar and gypsum plaster and soil
 
14 200 ton press machine Determination of compressive strength of concrete
15 Los Angeles Determination of Aggregate Resistance to Impact and Wear
16 300 ton press machine Determination of compressive strength of concrete
17 Concrete cutting machine Cut concrete and core specimens with different dimensions up to 150 mm
18 Smooth Concrete Machine To smooth the head and bottom of the core and create a smooth surface on the concrete specimens
 
19 Aggregate resistance device to impact and crushing To determine the resistance of aggregates to impact and crushing
20 cement mortar mixer For mixing cement paste and cement mortar
21 Vicat machine To determine the normal concentration and retention time of cement and gypsum
22 Alkaline Reaction length change measuring machine To determine changes in the length of concrete and mortar samples
23 Concrete air measuring device To measure the amount of air in fresh concrete
24 Oven (120 degrees) General applications and drying of materials
25 Oven (240 degrees) General applications and drying of materials
26 Freezer General applications
27 Electric Furnace (1150 °) General applications and chemical testing of materials
28 Vibrating table For compacting concrete specimens
29 Apparatus for determining the modulus of elasticity of concrete Determination of modulus of elasticity of concrete
30 Concrete bath machine (alkali reaction( To test the alkali reaction
31 Concrete mixer For mixing concrete in volumes of 30 to 100 liters
32 Blaine machine To determine the softness of the cement
33 Sand Value Determination System (SE) Determination of sand value of fine-grained rock materials
34 Flow (Ceylon) table test Consistency determination of cement mortar
35 Divisive device To reduce the volume of aggregate samples and divide it into equal parts
36 Archimedes scale To weigh the weight of materials in water
37 Digital scales With different capacities and precision
38 Scale 20kg - leverage Public use
39 Scale 30kg - handheld Public use
 
Standards and codes
 
ASTM C 136 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates
ASTM C 566 Standard Test Method for Total Evaporable Moisture Content of Aggregate by Drying
ASTM C 29 Standard Test Method for Bulk Density (“Unit Weight”) and Voids in Aggregate
ASTM C 1260 Standard Test Method for Potential Alkali Reactivity of Aggregates (Mortar-Bar Method)
ASTM C 1293 Standard Test Method for Determination of Length Change of Concrete Due to Alkali-Silica Reaction
ASTM C 127 Standard Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate
ASTM C 128 Standard Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate
BS812 Part 3 Methods for Determination of Mechanical Properties
ASTM C 131 Standard Test Method for Resistance to Degradation of Small- Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
ASTM C 535 Standard Test Method for Resistance to Degradation of Large- Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
ASTM C 117 Standard Test Method for Materials Finer than 75-μm (No. 200) Sieve in Mineral Aggregates by Washing
ASTM C 88 Standard Test Method for Soundness of Aggregates by Use of Sodium Sulfate or Magnesium Sulfate
ASTM D 2419 Standard Test Method for Sand Equivalent Value of Soils and Fine Aggregate
BS 812: Section 105.2 Methods for determination of particle shape. Elongation index of coarse aggregate
BS 812: Section 105.1 Testing aggregates. Methods for determination of particle shape. Flakiness index
ASTM C 123 Standard Test Method for Lightweight Particles in Aggregate
Concrete Standards
 
ASTM C172 Standard Practice for Sampling Freshly Mixed Concrete
ASTM C143 Standard Test Method for Slump of Hydraulic-Cement Concrete
BS1882 Part 2 Testing concrete. Vee Bee Test
ASTM C138 Standard Test Method for Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete
ASTM C 192 Standard Practice for Making and Curing Concrete Test Specimens in the Laboratory
ASTM C231 Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
ACI 211.1R Standard Practice for Selecting Proportions for Normal, Heavyweight, and Mass Concrete
ACI 211.2R standard practice for selecting proportions for structural lightweight concrete
ACI 211.3R Guide for Selecting Proportions for No-Slump Concrete
ACI 211.4R Guide for Selecting Proportions for High-Strength Concrete Using Portland Cement and Other Cementations Materials
ASTM C 617 Standard Practice for Capping Cylindrical Concrete Specimens
ASTM C 39 Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens
ASTM C 116 Test Method for Compressive Strength of Concrete Using Portions of Beams Broken in Flexure
ASTM C 496 Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens
 ASTM C469 Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression
 ASTM C42 Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete
DIN 1048 TESTING CONCRETE - TESTING OF HARDENED CONCRETE (SPECIMENS PREPARED IN MOULD)
ASTM C 642 Standard Test Method for Density, Absorption, and Voids in Hardened Concrete
BS 1881: Part 122 Testing concrete. Method for determination of water absorption
ASTM C 876 Standard Test Method for Corrosion Potentials of Uncoated Reinforcing Steel in Concrete
ASTM C 597 Standard Test Method for Pulse Velocity Through Concrete
ASTM C426 Standard Test Method for Linear Drying Shrinkage of Concrete Masonry Units
ASTM C 1152 Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete
ASTM C 403 Standard Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance
ASTM C 143 Standard Test Method for Slump of Hydraulic-Cement Concrete
ASTM C 231 Standard Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method

View: 1121 Time(s)   |   Print: 191 Time(s)   |   Email: 0 Time(s)   |   0 Comment(s)