JCT2558-A Square Permeability Coefficient Test Device

JCT2558-ASquare permeability coefficient test device Permeable concrete permeability coefficient test device

1、 Product Introduction

The concrete permeability coefficient test device is an equipment for testing the permeability coefficient of permeable concrete, which meets the requirements of《JC/T2558-2020According to the standard requirements of the Test Code for Permeable Concrete, the structure is simple, the cost is low, and it is easy to operate.

The concrete permeability coefficient test device is composed of a prism sealing device(Prism device with overflow port and able to maintain a certain water level)Measuring container, base, composed of.

II JCT2558-ASquare permeability coefficient test deviceProduct Parameters:

Measuring container: capacity of15L

Prism device height:300mm

Applicable test piece:100×100×100mm

3、 Instructions for use

1The specimens to be tested for permeability coefficient will have a curing age of27Tian Shi took it out of the standard curing room and then placed the specimen in20±2°CSoak in water, and the water surface should be higher than the upper surface of the specimen during soaking20mm-30mmThe soaking time is24hour The test piece should be in28Conduct permeability coefficient test at the age of days.

2Measure the length, width, and thickness of the upper surface of the cube specimen twice with a steel ruler when it reaches the age limit, and take the average value accurately to1mmCalculate the upper surface area of the test piece, then install the prismatic device and seal it, then open the water supply valve to allow water to enter the prismatic device to adjust the water inflow, so that the prismatic device can maintain a certain water level(about150mm)After the flow outlet of the prism sealing device is stable, use a measuring container to collect water from the base outlet and record it90SMeasure the amount of water flowing out three times and take the average.

3Measure the difference between the water level of the prism sealing device and the water level on the surface of the specimen accurately with a steel ruler1mmAccurately measure the temperature of water in the prism sealing device during the experiment using a thermometer1°C.