Design method of concrete standard curing room

Design method of concrete standard curing room

What are the main principles of standard maintenance room design?

A: The main principles of concrete standard maintenance room design are insulation, moisturizing and water saving.

What technical requirements should be met for the setting of concrete standard maintenance rooms ?

1, the house requires thermal insulation, according to the size of the project to determine the size of the standard maintenance room, Zui small should not be less than 5m2;

2, placed concrete, supplier Hebei Dahong Experimental Instrument Co., Ltd. cement mortar and plastic mortar with plastic mortar test pieces of the standard curing room, should be equipped with thermostat or electric heating rods and other thermostats, so that the maintenance room temperature is controlled at 20 ±2 ° C range.

3, the maintenance room should also be equipped with a spray or humidification device to make the indoor relative humidity greater than 95%, or in a non-flowing Ca(OH)2 saturated solution at a temperature of 20 ± 2 °C;

4. The test pieces in the curing room should be placed on the brackets at intervals of 10 -20 mm. The surface of the test pieces should be kept moist and should not be directly washed by water;

5. The standard curing room should be equipped with cement mixed mortar test piece cabinet (or maintenance box), and the cabinet should be lined with sponge and other insulation materials to control the humidity of 60%-80%; supplier Hebei Dahong Experimental Instrument Co., Ltd.

6, the standard curing room should be equipped with a thermometer, hygrometer, temperature and humidity should be recorded by the person responsible twice a day (on the morning and afternoon). At the same time, it is necessary to establish a management system for the standard maintenance room, determine the job responsibilities of the standard maintenance room, and concretize and standardize the job responsibilities of the post;

The main structure of the concrete standard maintenance room :

1, heat preservation, moisturizing:

1 The overall size of the standard maintenance room is reasonable, the height is generally 2.4~2.7m, the indoor part should be used as the test piece frame, and the area of ​​the standard room should be determined according to the number of test pieces, so that both the space and the structure size can be fully utilized. Reduce heat exchange surface and water seepage surface to achieve the purpose of heat preservation and moisturizing.

2 standard room design, existing standard room reconstruction, usually built in the house, that is, the house in the middle, the middle is the air interlayer (the middle of the interlayer with a rigid foam block better supplier Hebei Dahong experiment Instrument Co., Ltd.), the thickness of the top interlayer is about 100mm, and the thickness of the surrounding interlayer is about 50mm. This is not only good insulation, but also low cost. The standard room does not open the window, and the door should be kept warm and moisture-proof.

3 The humidity in the standard room is often supersaturated, and the inner wall is often filled with water drops. Due to the penetration of water, the insulation performance and service life of the wall are seriously reduced.

Concrete standard maintenance room Therefore, the interior wall, floor and top of the standard room should be waterproofed. The general unit is only used as a waterproof mortar layer, and epoxy resin paint should also be sprayed. The practice is once a day, even three times. * The ratio of secondary resin to propylene is 1:2, and the second and third times are 1:1. When used, the epoxy resin supplier Hebei Dahong Experimental Instrument Co., Ltd. (excluding acetone in solution) and polyamide (curing agent) weight ratio is 4:1.

2. Water saving Because the relative humidity requirement in the standard room is above 95%, it is required to continuously spray the curing room, and the water consumption is very large. In addition to water-proof and water-saving treatment, water recycling is the key to water saving. The sink is surrounded by a sink, a sedimentation pit and a pool, as shown in Figure 2. The ground is covered with a pool of high water, with a slope of 0.5% to the surrounding slope and a slope of 5% to the sink. The opposite corner of the pool is tilted to the pool, so that the ground does not accumulate water. The ejected water can be quickly returned to the sink, passed through the sedimentation tank and returned to the pool, and recycled in the absence of equipment in the standardization room. The daily water consumption was measured to be 8 kg.