Winter epoxy grout model selection and construction specifications

As the weather turn cold gradually, in order to meet the construction conditions of winter. On the model selection of epoxy grout should also change. Winter construction of epoxy grout model choice: early strength type epoxy grout winter, also known as the winter. A year in the northern hemisphere the coldest of months, the other for spring, summer, autumn. Astronomy, think is from December to February, China used to mean the beginning of winter to spring, three months time, also refers to the lunar calendar 'ten, eleven, twelve,' three months [ 1] 。 Parts of winter is the fourth quarter of the year round, because the weather turns cold, Except the equator) Means silence and cold and cheerless, in many areas. Creatures in the incoming cold time will reduce the life activities, will leaves most of the plants, animals sleep, sometimes called hibernation. Migratory birds fly to warmer places in winter winter early strength type epoxy grout construction specifications: the temperature is reduced, in order to ensure the strength of epoxy grout strength type epoxy grout can meet earlier use; In addition also need other heat preservation measures. Early strength of epoxy grout solidifying time: 2 hours can reach 20 million mpa compressive strength standard 1: mixing, mixing process of warm water should be used, the site should have heating conditions. And mixing the water used in the heat treatment, the temperature control in the 30 - 40 degrees Celsius. Specification: 2 heating measures, indoor construction available iodine tungsten lamp burn. Ensure epoxy grout hydration smoothly. Or use the flame to heat up. Into the mold temperature whether meet the judgment based on epoxy grout into the mold temperature must be not less than 5 ℃. Improvement measures, such as thermal calculation can not meet the requirements, adopt the method of heating water, when heating water still cannot meet the requirements, then add to aggregate when hot. Water, aggregate meet temperature still did not meet the requirements of computation, can improve the water temperature to 100 ℃ ( Cement shall not direct contact with water of above 80 ℃, label below 42. 5 of ordinary Portland cement, slag Portland cement top contact water temperature 80 ℃; Label is higher than and equal to 42. 5 the ordinary Portland cement, slag Portland cement supreme contact temperature 60 ℃) , but should change the release order. When mixing epoxy grout mixer feeding order again after first under the sand, stone, water mixing cement mixing, stirring time 50% longer than normal season. Until the calculation into the mold temperature is not lower than 5 ℃, before opening. Epoxy grout pouring construction to prevent epoxy grout for trapping heat in the process of transportation, when decorate epoxy grout pump, fully considering the transport distance, recently try to decrease the number of the firm for epoxy grout, pumping pipe insulation with straw bag. When the stage after mixing station also try to reduce the number of the firm. Template dismantled except in accordance with the construction requirements under normal temperature, temperature also shall meet the following conditions: met the requirement of the epoxy grout strength and cooling to 5 ℃; Epoxy grout temperature and environmental temperature difference is greater than 20 ℃, after ripping epoxy grout surface should be covered in time, make its slow cooling. Winter pouring reinforced epoxy grout structure, floor, besides can withstand the upper construction load shall not be piled up any additional load, dismantled under the template must be immediately shipped, shall not be piled up on the floor. Setting temperature measuring hole epoxy grout on the project size is relatively small, select the typical artifacts in each layer temperature, beam 2, two points, a pillar. Temperature tube embedment depth generally is 10 ~ 15 cm, plate embedded board. Temperature measuring point with the method of embedding temperature tube, temperature tube use 3/4 'steel pipe. Higher than that of column temperature tube wall perpendicular to the facade, the height of the panel 1200 buried. Temperature tube embedded, guarantee center temperature tube into the structure. In the mould and pay attention to the protection of temperature tube curing stage. Thermometer hole made with 3/4 'pipe, welded steel pipe end to death, a template with HuoShaoSi fixed in the thermometer hole position, in order to ensure the hole temperature and the temperature of the epoxy grout, hole irrigation ( Mixed alcohol in order to reduce the freezing point) Live orifice and cork, cork drill a hole, put thermometer used to measuring temperature, see illustration on the temperature measuring point of practice. Thermometer hole where attention is covered with plastic film and flame retardant felt good, prevent heat loss.