Cementitious capillary crystalline waterproofing materials
一、introduction
Cementitious capillary crystalline waterproofing materials (called crystal as follows) is powder material constituted by a set of active compound and silicon sand which are special processed from the cement. When the crystal is used on concrete surface, its active chemical permeates into the concrete through the carrier, then works with dissociative lime and water in the capillary, forms water-fast crystalloid, rams capillary, so as to make concrete dense and waterproof thus.
二、Permeate crystalline principle
1.At the dry concrete section, it is clear to see dissociative lime and water containing in the capillary.
2.When the wall meets the water, the water will permeate the wall through the capillary over a long period of time, making concrete damaged and leaking.
3.When use the crystal at the same concrete wall, its active matter begins to permeate into the concrete. Once meeting water and dampness, it works to form a chemical crystalloid, ram the capillary firmly, drive out water.
4.After water is out, the concrete surface is dry and waterproof, the crystalloid will stay permanently in the concrete, become a permanent waterproof layer. <
三、Characteristic
1、Can be used for concrete waterproof;
2、Construction is seamless;
3、Can construct on the damp base level;
4、Keep permanent alive, can cicatrize the 0.3mm crack;
5、Won't effect concrete breathe, keep structure dry, protect reinforcing steel bar;
6、Protect the concrete from erosion by sea, waste water and some chemical and so on;
7、Can endure the water pressure at least 1.2 Mpa;
8、Because of the particular penetrability, safeguard is no need;
9、Can construct immediately after the template's backout, saving time limit and labor force;
10、innocuity and harmless, can be used for the concrete citing water;
11、can enhance the intensity, prevent freeze melting breakage to the concrete;
12、The cost is low, the method is simple.
四、Construction method
1、brush method
1）mix the crystal and eau douce with 3:1 ratio by machine, mill equality and get dense forming cement ;
2）brush the prepared crystal with 1-1.5kg/m2(according to the engineering actual circumstance) average dosage on the prepared waterish concrete surface by tailor-made hair brush twice. The second brush layer can be doing when the first layer is still damp or completely dry.
2、the scatter method:
Before the layer doesn't irrigate the concrete, scatter the crystal with 1-1.5kg/m2(according to the engineering actual circumstance) average dosage evenly on the prepared waterish layer, commonly it should be finished in 30 minutes before the concrete is irrigated.
3、calender method:
When the irrigated concrete congeals, scatter the crystal with 1-1.5kg/m2(according to the engineering actual circumstance) average dosage evenly on the concrete surface, then immediately put up calendered process by float or finishing machine.
4、spray method:
1）mix the crystal and eau douce with 3:1 ratio by machine, mill equality and get dense forming cement
2）fill the prepared crystal into sprinkler, spray with 1-1.5kg/m2(according to the engineering actual circumstance) average dosage in two times.
五、Application
Swimming pool Dam Power plant Tunnel Block water wall Farming pond
Elevator well Bridge Toilet Water tower Reservoir Grain depot
Subway system Wastewater treatment factory Oceanarium Nuclear powder station
Waterworks Maritime affairs structure Underground parking lot
Damaged and aging concrete structure Groundsill, motherboard and wall of basement
