SKAL-H Rapid Concrete Alkali Tester

• 

Detection method: ISE (Ion Selective Electrode)
Test indicators: the alkali content of concrete and raw materials, means the equivalent content of sodium oxide Na2O (%)

Manufacturer:
Product Application:
Concrete materials contain alkali (potassium ion, sodium ion).When the concrete is in the sufficient moisture environment after a period of time, the concrete bases alkali(potassium ion, sodium ion)will react with the active silicon in the thickness aggregate.The reaction will cause the expansion of the structure and cracking, means the alkali-aggregate reaction. As the alkali-aggregate reaction will cause harmful effects to concrete structures, both domestic and foreign departments take great attention to concrete alkali content limits.
According to “Standard for Maximum Alkali Content in Concrete” CECS 53：93 ，“Standard for Durability Assessment of Concrete Structures” CECS 220：2007 and some other relevant standards,the concrete alkali content refers to the equivalent oxidation sodium content in the concrete ,by kg/m3. The alkali content of the concrete raw material refers to the equivalent oxidation sodium content in the concrete raw materials, by weight percentage (%). And the oxidation sodium content is equivalent to the sum of the oxidation potassium plus the oxidation sodium times 0.658, namely "the equivalent oxidation sodium content= Na2O + 0.658 * K2O".
The apparatus adopts Ion Selective Electrode method (ISE), and it uses the United States imported composite potassium Ion Electrode and composite sodium ions Electrode to rapidly test the alkali content (%) of the concrete (including fresh concrete, wet concrete, hard concrete powdery sample,etc) and the concrete raw materials (including the cement, chemical additive, admixtures, etc.) at room temperature

Executive Standard
1.“Standard for Maximum Alkali Content in Concrete” CECS 53：93
2.“Standard for Durability Assessment of Concrete Structures” CECS 220：2007

Product features:
1.10minutes test cycle to rapidly test the concrete alkali content
2.Specific anti-ion interference agent, strengthen ion concentration and remove all kinds of metal interference effect in the same time
3.High precision potassium, sodium ions composite electrode, stable performance
4.Large LCD screen straight display, hand-held printer for instant printing, operation is reasonable
5.Unique self-diagnosis function, original PC analysis software
6.Great data storage capacity, can store 100 test data
7.Data record continuous, safe and reliable

Test object: fresh concrete, wet concrete and concrete raw material

Detection principle:
NJAL-H rapid concrete alkali tester adopts ion selective electrode method (ISE method) rapidly to test the alkali content of the water-soluble matter, such as concrete, gravel, and additive.
The concrete or other samples should be pretreated before usage. Put the two prior activated and calibrated electrode into the mixture according to the instructions, one of the electrode tests the sodium ion content, the other one tests the potassium ion content. The instrument can turn the tested voltage data (mv) into Na2O and K2O content (%) through the calibration curve. After filling the result to the host calculation formula ,it will automatically get the Na2O percentage (%) of the concrete alkali content. After the electrode activation, each experiment process will need only 10 minutes.

Technical parameters
Power voltage: AC 220V
Working voltage: DC 3.6V
Test precision: =<10%
Printer working voltage: DC 5V
Data storage capacity:100
Pc communication parameters:2400 baud rate
Acquisition cycle:=<3min
Standby time: >24 hr
Weight:240g
LCD SCREEN dimension: 128*128

Test step:
1) Activate electrode
2) Weight and pretreat the samples according to the instructions
3) Calibrate electrode and test the sample solution
4) display measured data
Test results:
1) Concrete alkali content percentage (%)
2) Concrete oxidation sodium percentage(%)
3) Concrete oxidation potassium percentage(%
Measuring range: 0.001% ~ 30.000%
Measuring precision: +/-10%
Operating temperature: 0centigrade ~ 45 centigrade
Resolution: 0.001.

System Configuration
1.NJAL-H rapid concrete alkali tester
2.Composite sodium ion Electrode
3.Composite potassium ion Electrode
4.Calibrated solution, ionic strength adjustor
5.Charger
6.Hand-held micro-printer
7.PC computer software

Другие товары поставщика

	SK225-s цифровой голос молоток	Кратко введение: NJ225-с молоток испытания представляет к стандарту GB/T9138-1988 и jjg817-93 и JGJ/Т23-2001. Автоматически вычислять данные и на с...
	Ультразвуковой дефектоскоп SKC61	Purpose  Testing building foundation piles by crosshole ultrasonic wave method .  Inspecting concrete defects by ultrasonic method, such as uncom...
	SKCL-C Rapid concrete chloride tester	Product introduction Chloride ion is one important factor to induce reinforcement corrosion. In order to avoid premature reinforcement corrosion, c...
	SK-DTL Concrete Resist Chloride Ion penetration tester	Detection method: electricity Executive Standard Standard for test methods of long-term performance and durability of ordinary concrete（GB/T50082-2...
	SKZY-10/20/30 anchor shank tension tester	Executive Standard GB50367-2006 Design code for strengthening concrete structure Product introduction: The instrument is suitable for testing the a...

Похожие товары

	FNAC-28 2 IN 1 Type-C USB Tester Voltage Current Power Meter	Продавец: Phonefix	FNIRSI FNAC-28 Multifunctional 2 in 1 Type-C USB Tester Digital Voltmeter Ammeter Amperimetor Vol...
	WF-EDU-02 Motor & Propeller Test Kit	Продавец: Wing Flying Technologies Co., Ltd	WF-EDU-02 Motor & Propeller Test Kit Product Description Motor & Propeller Test Kitsare...
	WF-EDU-01 Motor and Propeller Test Kit	Продавец: Wing Flying Technologies Co., Ltd	WF-EDU-01 Motor and Propeller Test Kit Product Description Suggested Propulsion system ...
	WF-EN-50 Engine Test Bench	Продавец: Wing Flying Technologies Co., Ltd	Suggested Engine 110cc-350cc Engine Max Hanging Type Engine 20kg ...
	WF-EN-15 Engine Test Bench	Продавец: Wing Flying Technologies Co., Ltd	WF-EN-15 Engine Test Bench Product Description Suggested Engine 110cc Engine ...