Cement chloride ionizer is an instrument used to measure the total amount of chloride ions in cement cement materials, admixtures, etc. It has the advantages of excellent performance, simple operation, accurate data, and stable product quality.
★ Performance index temperature control accuracy: ± 0.2%;
★ Timing accuracy: ± 0.1%;
★ Temperature setting: 250-260 ℃
★ Environmental requirements The test chamber should be kept dry and clean.
Third, the main features:
★ The analysis speed is fast, the determination of a single sample is completed in 10 minutes.
★ High analysis accuracy, the deviation of the analysis result is less than the error required by the standard
★ High level of automation, digital display of instrument, temperature control accuracy of 0.5% degree
★ Good insulation and complete accessories.
★ It has a wide range of applications, and can be used for the determination of cement finished products, semi-finished products and raw materials.
Fourth, operating procedures:
★ Turn on the power switch, power on, and press the OK key to start running.
★ After the temperature and time are set, press the heating start key to start heating. When the temperature reaches the set value, place the quartz distillation tube in the furnace, quickly connect the silicone tube, and then turn on the air pump and timer switch Start working, timer **.
★ After the timing is over, the instrument will alarm automatically to indicate the end of work. Turn off the power switch when finished.
V. Sources of chloride ion in concrete:
Chloride is a cheap and readily available raw material for Ding industry, and it has obvious economic value in cement production. It can be used as a mineralizer for calcining clinker, which can reduce the firing temperature and is conducive to energy saving and high yield. It is also an effective early strength agent for cement, which not only increases the 3d strength of cement by more than 50%, but also reduces the freezing temperature of water in concrete. To prevent early freezing of concrete. The sources of chloride ions are mainly raw materials, fuels, mixed materials and admixtures. However, most of the chloride ions are volatilized at high temperature and discharged out of the kiln during the clinker calcination process. . If the chloride ion content in cement is too high, the main source is mixed with admixtures and additives (such as industrial waste residue, grinding aids, etc.). Therefore, the requirement of "allowing the addition of grinding aids ≤0.5% in cement production and the chloride ion content in cement must be ≤0.05%" has been added to the new cement standard in China, which is mainly to ensure that cement is not correct. Excessive negative impact on concrete quality.