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Laboratory

INTRODUCTION

Address: 38 Le Thanh Phuong Street – Nha Trang City – Khanh Hoa Province.

Tel: (84.58) 2 220 384 - Fax: (84.58) 2 220 400

Email: hytc.pecc4@evn.com.vn; hytran1976@gmail.com

The former of Civil Engineering testing Laboratory LAS-XD367 was an experiment team belonging to Survey Department - Southern Region Power Planning and Designing Sub-Institute, which was established on July 14th, 1976. The Laboratory was recognized by Ministry of Construction of Vietnam as Accredited Laboratory with code certification LAS-XD367 on decision No. 1458/QĐ-BXD dated July 20th, 2005.

Activities of Civil Engineering testing Laboratory are based on procedures, which were defined in Quality manual of Company in ISO 9001:2008 Quality system, certified by BUREAU VERITAS CERTIFICATION organization.

Field of testing:

o        In-lab and in-situ testing on physico-mechanical properties of soils;

o        Testing on physico-mechanical properties of construction materials (cement, crushed aggregates, steel, etc…)

o        Testing and analysis on environment criteria (analysis on water, waste substance, air environment, etc…)

o        Testing on physico-mechanical properties of concrete, concrete mixtures, Roller Compacted Concrete (RCC);

o        Defining mechanic characteristics of structural materials.

LIST OF PEORMED TESTS

No

Content

Standard

1

TESTING ON PHYSICO-MECHANICAL PROPERTIES OF CEMENT, MINERAL ADDITIVES
Number of tests enable to be performed: 12 tests
Main tests are as follows:
- Fineness and specific weight
- Define ultimate bending strength and compressive strength
- Define standard plasticity, setting time, soundness
- Loss of ignition
- Define strength activity index of mineral additives




TCVN 4030:03
TCVN 6016:95
TCVN 6017:95
TCVN 7173:02, ASTM C114 - 04
TCVN 5882-01, ASTM C311 - 04

2

TESTING ON CONCRETE MIXTURE, HEAVYWEIGHT CONCRETE AND ROLLER COMPACTED CONCRETE
Number of tests enable to be performed: 16 tests
Main tests are as follows:
- Vebe hardness test
- Testing on analysis of concrete mixture compositions
- Define permeability resistance coefficient
- Define compressive strength
- Define flexural tensile strength
- Define splitting tensile strength
- Define direct tensile strength
- Define setting time of concrete mixture
- Define air content of concrete mixture
- Define static modulus of elasticity and Poisson’ ratio of concrete




TCVN 3107:93; ASTM C1170 - 91
TCVN 3110:79
TCVN 3116:93; 14TCN 65 - 2002
TCVN 3118:93; ASTM C39
TCVN 3119:93
TCVN 3120:93; ASTM C496 – 94
CRD-C164-92
ASTM C403 – 99
ASTM C231
ASTM C469-94

3

TESTING ON MASONRY MORTAR
Number of tests enable to be performed: 06 tests
Main tests are as follows:
- Define consistence of fresh mortar
- Define flexural and compressive strength of hardened mortar
- Define maximum size of aggregates




TCVN 3121-3: 03
TCVN 3121-11: 03
TCVN 3121-1: 03

4

 TESTING ON CONSTRUCTION MATERIALS
Number of tests enable to be performed: 22
Main tests are as follows:
- Gradation test
- Define petrologic composition of rock
- Define ultimate compressive strength of monolithic rocks

- Define crushing value and softening coefficient of coarse aggregate
- Define abrasion of aggregates by Los Angeles machine
- Organic substance content, sulphate, sulphite




TCVN 7572-2: 06
TCVN 7572-3 : 06; 14TCN 184-2006
TCVN 7572-10: 06; ASTM D2938 - 95;
GOST 21153.2 - 84
TCVN 7572-11: 06
TCVN 7572-12: 06; ASTM C131
TCVN 7572-16: 06

5

TESTING ON PHYSICO-MECHANICAL PROPERTIES OF SOILS IN LABORATORY
Number of tests enable to be performed: 19 tests
Main tests are as follows:
- Define specific gravity (specific weight)
- Define disintegration characteristics of soils
- Define direct shear resistance strength
- Define confined compressive strength
- Define standard compaction
- Define characteristics of soils by triaxial compression machine (compression diagram UU; CU; CD; CV)
- Consolidation test
- Unconfined compression test
- Testing on permeability coefficient of soils





TCVN 4195:95; ASTM D 854; GOST 5180-84
14TCN 132:05; GOST 24143-80
TCVN 4199:95; ASTM D3080; GOST 12248-96
TCVN 4200:95; GOST 12248-96
TCVN 4201:95;ASTM D558-03;GOST 22733- 77
ASTM D2850-3a; ASTM D4767-3a; BS 1377:1990; AASHTO T234-70; GOST 12248–96
ASTM D2435; GOST 12248 – 96
ASTM D2166 – 01; GOST 12248 - 96
14TCN 139 - 2005; GOST 25584 - 90

6

IN-SITU TEST ON PHYSICO-MECHANICAL PROPERTIES OF SOILS & FOUNDATION
Number of tests enable to be performed: 09 tests
Main tests are as follows:
- Moisture content, Density of soils in structural layers by sand cone method
- Define in-situ shear resistance strength of soils
- Static cone penetration test (SCPT)
- Define elastic modulus “E” of road foundation by hard compression plate.
- Define global elastic modulus “E” of flexible pavement by Benkelman beam deflection test.
- In-situ CBR test
- Bearing capacity of the foundation soil for static load
- Field Vane Shear Test

 



22TCN 346 : 06

HD42
TCXD 174: 89
22TCN 211:06
22TCN 251: 98
ASTM-D4429-92
TCXDVN 80 : 2002;
GOST 20276 – 84;
ASTM D1194 - 94
ASTM D2573 - 01

7

WATER CHEMICAL COMPOSITIONS ANALYSIS
Number of tests enable to be performed: 18 tests
Main tests are as follows:
- Define pH value
- Define organic substance content
- Carbonic (CO2 free and corrosiveness)
- Total hardness
- Bicarbonate (HCO3) and Carbonate (CO32-)
- Sulfate SO42-
- Grain size and suspended substance content

 

 

TCVN 6492 - 99; GOST 2874 - 82
TCXDVN 302:04; TCVN 2671 - 78
TCXD 81:81
TCXD 81:81; TCVN 6224-96; GOST 4151–72
TCXD 81:81
TCXD 81:81; TCVN 6200-96; GOST 24452-80
94TCN 13:96

8

WELD AND METALLIC MATERIALS TEST
Main tests are as follows:
- Weld- Method of traction test
- Weld- Method of bending test
- Metallic materials - Method of bending test
- Metallic materials - Tensile test at ambient temperature



TCVN 5403 : 1991
TCVN 5401 : 1991
TCVN 198 : 2008; ISO 7438 : 2005
TCVN 197 : 2002

MAIN EQUIPMENT AND TYPICAL TESTS

DIRECT TENSILE STRENGTH TEST
OF CYLINDRICAL CONCRETE ON
HYDRAULIC UNIVERSAL TESTING MACHINE
TEST FOR PERMEABILITY OF CONCRETE HYDRAULIC COMPRESSION
MACHINE ELE 25 TON

TEST FOR RCC MIXTURE
IN MIXING MACHINE

COMPRESSION, FLEXURAL
MACHINE ELE 150 TON
COMPRESSION STRENGTH TEST
TEST FOR ULTRASONIC OF CONCRETE DIRECT SHEAR MACHINE CONFINED COMPRESSIVE MACHINE
     
PH MEASURE MACHINE EQUIPMENT FOR CBR TEST IN LAB TRIAXIAL COMPRESSION MACHINE
     
PUSH-SLIDING TEST OF SOIL  TEST FOR RCC TRIAL
EMBANKMENT IN-SITU
IN-SITU DENSITY MEASURE
- NUCLEAR DENSOMETER
     
HORIZONTAL DRILL – CONCRETE PUSH-SLIDING TEST OF CONCRETE STATIC COMPRESSIVE TEST
OF CONCRETE
     
 STATIC CONE PENETRATION TEST STATIC LOADING TEST IN-SITU DIRECT SHEAR MACHINE
– CONFINED COMPRESSIVE MACHINE

 

 
 
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11 Hoang Hoa Tham St.,  Nha Trang City,  Khanh Hoa province
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