Concrete knows the lack of performance and causes

Performance of insufficient concrete strength and performance of insufficient strength: insufficient concrete strength will be accompanied by reduced impermeability, reduced durability, and more importantly, the bearing capacity of the structure. The main performance is three aspects:
1 reduce the structural strength, straight down.
2 poor crack resistance, resulting in a large number of wide cracks.
3 The member is deformed and the deformation is large enough to affect the normal use.
Reasons for insufficient strength:
The quality of a raw material is poor:
(1) Poor cement quality: 1 The actual activity of cement is low; 2 The cement stability is unqualified;
(2) Bad quality of aggregate (sand, stone): 1 low stone strength; 2 poor stability of stone volume; 3 poor shape and surface condition of stone; 4 high content of organic impurities in sand, stone, high dust content, mica content in sand high;
(3) The quality of the mixed water is unqualified:
(4) The quality of the admixture is unqualified or the composition ratio is improper. The concrete mix ratio is improper:
The concrete mix ratio is one of the important factors determining the strength. The water-cement ratio directly affects the concrete strength. Others such as water consumption, sand ratio, and asbestos ratio also affect the various properties of the concrete, resulting in insufficient strength accidents.
(1) Increased water consumption: The more common ones are not allowed to measure the water supply on the mixer; the water content in sand and stone is not deducted; even water is added at the watering place.
(2) arbitrarily applying the mix ratio;
(3) The amount of admixture is not accurate.
(4) improper use of admixtures;
(5) Insufficient measurement of sand and gravel and insufficient use of cement.
The third construction process is incorrect (1) The mixing is not good, and the time is too short or too long to cause unevenness.
(2) The cement slurry is seriously lost during pouring; the concrete is falsely condensed and initially condensed;
(3) Improper maintenance; such as early water shortage, dryness, freezing, etc.
The four test blocks are not cured or not prepared according to the regulations. For the remediation and treatment of insufficient concrete strength, the actual strength is measured, and the late strength, structural load reduction, structural reinforcement, analysis and calculation, and demolition and reconstruction are used.

Digital Electrode Probe

Here you can find the related products in Digital Electrode Probe, we are professional manufacturer of Digital Electrode Probe,Digital PH Meter,Digital Ph Tester,Digital Ph Sensor. We focused on international export product development, production and sales. We have improved quality control processes of Digital Electrode Probe to ensure each export qualified product.
If you want to know more about the products in Digital Electrode Probe, please click the product details to view parameters, models, pictures, prices and other information about Digital Electrode Probe,Digital PH Meter,Digital Ph Tester,Digital Ph Sensor.
Whatever you are a group or individual, we will do our best to provide you with accurate and comprehensive message about Digital Electrode Probe!

Digital Electrode Probe,Digital Ph Meter,Digital Ph Tester,Digital Ph Sensor

Xi'an Gavin Electronic Technology Co., Ltd , https://www.gaimc-meas.com