Sodium gluconate can significantly delay the start and end of the setting time of concrete. In an amount
of 0.15% or less, starting with the logarithm of the coagulation time increase in direct proportion to the
amount of relationship, that with dosage doubled, starting solidification time delay to ten times, which
makes it capable of operating time from a few hours to a few days less without compromising on strength.
Especially in the long hot days and need to put the time, this is an important advantage.
(1) using sodium gluconate, W / C ratio can be reduced, which can increase the strength of concrete,
which is a type of high-quality concrete.
(2) it's a difficult job to work for bulk and heavy weight perfusion
(3) Keep the W / C ratio and enhance the work of the same sex in the hot area is important. In the Middle
East build bridges had used a lot of sodium gluconate.
(4) Added to the concrete mixing sodium gluconate, it can delay the clotting time, it's very important for a
long and difficult perfusion.
(5) In modern concrete industry, ready-mix concrete is a combination of good
location and then shipped out with a mixer truck. In this case, increasing the working time and the
initial coagulation is important.
(6) lower W / C can be made higher than the concrete strength and durability,
achieve this purpose. This is very important for high strength concrete.
(7) The prefabricated masonry mortar must be used in a long period of time. Sodium gluconate is
added to extend the working period.(8) Since the well water slurry high temperature it is difficult to operate,
gluconate concrete can operate for several hours at a temperature of 170 ℃.
of sodium gluconate, improve concrete workability and setting time delay can avoid contact with the
surface structure, the result can enhance structural strength.
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