LSY-18B Fully Automatic Concrete Sulfate Dry–Wet Cycling Test Chamber
Category:
Keywords:
E-mail:
WhatsApp:
Description
Product Introduction
This equipment is used to evaluate the sulfate‑resistance of ordinary concrete with high strength grades under dry–wet cycling conditions.
Implementation Standard:
GB/T 50082 “Standard for Test Methods of Long-Term Performance and Durability of Ordinary Concrete”; “Test Method for Freeze–Thaw Resistance of Concrete”; RILEM TC 117‑FDC 1995; “Equipment for Freeze–Thaw Testing of Concrete” JG/T 243; “Test Procedures for Hydraulic Concrete” SL/T 352; “Test Procedures for Cement and Cement Concrete in Highway Engineering” JTG 3420.
Features:
1. It can perform immersion, air-drying, oven-drying, and cooling cycles on test specimens.
2. Microcomputer-controlled; the dry–wet cycling process is displayed in real time on an LCD screen.
Technical Specifications:
| Parameter Category | Parameter content |
| Rated voltage | 220V |
| Total machine power | 5KW |
| Heating power | 4.5KW |
| Refrigeration capacity | 130W |
| Pump power | 250W |
| Temperature range inside the box | 80±2℃ |
| Soaking time | 15 ± 0.5 h (adjustable) |
| Solution drainage time | 0.5 h ± 0.05 h (adjustable) |
| Air-drying time | 0.5 h ± 0.05 h (adjustable) |
| Drying time | 6 h ± 0.1 h (adjustable) |
| Cooldown time | 2 h ± 0.1 h (adjustable) |
| Total cycle time | 24±2h (adjustable) |
| Soaking solution | 5% sodium sulfate (Na₂SO₄) |
| Concrete test cube dimensions | ① 100×100×400mm; ② 100×100×100mm |
| Maximum specimen capacity | ① Can hold 18 pieces (6 sets); ② Can hold 54 pieces (18 sets) |
| Machine dimensions | 1470×760×1020mm |
| Solution tank dimensions | 840×440×610mm |
Test procedure:
Concrete specimens are removed from the standard curing chamber, dried, and then placed in a dry–wet testing chamber (the reservoir must be filled at once with 160 kg of a 5% sodium sulfate solution). The specimens are evenly arranged on the rack, with a 30 mm gap maintained between each specimen.
2.1 Specimen Immersion: The solution level shall extend at least 5 mm above the specimen surface, and the specimen shall be immersed for 16 ± 0.5 hours.
2.2 Drying the Specimens: After soaking is complete, the drain valve automatically opens; within 30 minutes, drain the solution completely and allow the specimens to dry, starting from the drain…
The total time required for the liquid to dry on the specimen is 1 hour.
2.3 Drying of Specimens: After air-drying is complete, proceed with oven drying. Raise the specimen temperature to 80°C ± 5°C and maintain this temperature for 6 hours.
2.4 Specimen Cooling: After drying is complete, the refrigeration system is activated to bring the temperature inside the specimen chamber close to room temperature.
Note 1: In the container used for soaking the specimens, the ratio of the volume of the solution to the volume of the specimen shall be maintained at 3 ± 0.1.
Note 2: During the test, the pH of the solution should be checked regularly—typically once a week during the first month, and thereafter at intervals of…
Perform 15 cycles, maintaining the solution’s pH between 6 and 8 and its temperature within the range of 20–25°C.
After the specimen has cooled to room temperature, complete one dry–wet cycling test cycle, then immerse it in the solution and proceed according to steps 2.1–2.4 described above.
The method proceeds to the next wet–dry cycle.
2.5 At each set of ten wet–dry cycles, perform a weighing test on the specimen under test, concurrently conduct a compressive or flexural strength test, and inspect the surface for any signs of damage.
2.6 During the dry–wet cycling test, an equal number of specimens shall be prepared and subjected to standard curing as a reference for compressive strength testing or…
Control specimens for flexural strength. The test shall be terminated when the corrosion resistance coefficient of mass is below 95%, or when the corrosion resistance coefficient of compressive strength (cube specimens) falls below 85%, or when the corrosion resistance coefficient of flexural strength (prismatic specimens) drops below 70%, or upon reaching 50 dry–wet cycles.
Related Product
HC-40 Concrete Multi-functional Strength Tester
The HC-40 concrete multi-functional strength tester is a high-performance testing device integrating multiple advanced technologies, specifically designed for evaluating the strength and quality of concrete.
FAQs
Customer Reviews
European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester
2026.06.05
★★★★★
Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment
2026.06.05
★★★★★
Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine
2026.06.05
★★★★★
Consult
We will contact you within one working day. Please pay attention to your email.
Whether you want to customize product features
I still need some examples to refer to ——
Please let us know what you're looking for, and we'll send you relevant materials to help you move your project forward quickly!
Global Partners
Customer Satisfaction
Committed to becoming a leader in China's testing equipment manufacturing industry
Share To
Contact Us
Mobile:+86-15102211717
Whatsapp:+86-15102211717
E-mail:lbt@lbt.ltd
Address:Tianjin Jinghai Economic Development Zone