No construction shail be carried out when the field temperature is below 5 ံC and the costruction shall be completed at least one month carher than the serious freezing day. For construction in rainy seasons, special attention shall be paid to the weather change, so as to prevent the cement and the mixture from wetting by the rain. The construction shall be halted when it rains, However, the spread mixture shall be rolled compact as soon as possible.
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From @tuntunwin