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| Last update: 2020/01/11 |
Concrete and building materials laboratory
Head: Nematollah Bakhshi
Email: nbakhshi
aut.ac.ir
Technician: Abdolhassan Pirniazadeh
Technician:Hafezeh Shokrani
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.
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 |
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