Beton d\u00f6k\u00fcm\u00fc s\u0131ras\u0131nda ortalama hava s\u0131cakl\u0131\u011f\u0131n\u0131n artarda \u00fc\u00e7 g\u00fcn s\u00fcre ile +5 \u00b0C\u2019nin alt\u0131nda oldu\u011fu durum d\u00f6k\u00fcm i\u00e7in so\u011fuk hava ko\u015fullar\u0131n\u0131 olu\u015fturur. So\u011fuk havalarda s\u0131cakl\u0131\u011f\u0131n azalmas\u0131yla \u00e7imentonun hidratasyonu yava\u015flar. Yava\u015flayan hidratasyon betonun dayan\u0131m kazanma h\u0131z\u0131n\u0131 da azalt\u0131r. Kal\u0131p s\u00f6kme s\u00fcreleri uzar.
Taze betonun \u00f6zellikle prizi esnas\u0131ndaki donma \u00e7ok tehlikeli tahribatlar yapabilir.
T\u00fcrk Standartlar\u0131 bununla ilgili olarak baz\u0131 s\u0131cakl\u0131k s\u0131n\u0131rland\u0131rmalar\u0131 getirmi\u015ftir (\u00d6rne\u011fin, En B\u00fcy\u00fck Agrega Tane B\u00fcy\u00fckl\u00fc\u011f\u00fc 31,5 mm olan bir betonun -1\u00b0C ~ 5 \u00b0C aras\u0131ndaki hava s\u0131cakl\u0131\u011f\u0131nda taze beton kar\u0131\u015f\u0131m s\u0131cakl\u0131\u011f\u0131n\u0131n en az 15 \u00b0C, yerle\u015ftirme s\u0131cakl\u0131\u011f\u0131n\u0131n ise en az 13 \u00b0C olmas\u0131).
So\u011fuk havalarda betonu korumak i\u00e7in, betonun uygun olan ba\u015flang\u0131\u00e7 \u0131s\u0131s\u0131n\u0131, belli bir dayan\u0131ma ula\u015f\u0131ncaya kadar ge\u00e7en s\u00fcrede korumak veya belirli bir de\u011fere inmesine kadar izin vermek gerekir.
Beton bas\u0131n\u00e7 dayan\u0131m\u0131n\u0131n 50 kg\/cm\u00b2\u2019lik bir de\u011fere ula\u015ft\u0131\u011f\u0131 s\u00fcreye kadar dona kar\u015f\u0131 korunmal\u0131d\u0131r (suya doygun betonlar i\u00e7in ge\u00e7erli de\u011fildir). Uygun yerle\u015ftirme s\u0131cakl\u0131\u011f\u0131nda beton i\u00e7in gerekli koruma s\u00fcresi en az 3 g\u00fcn\u2019d\u00fcr.
So\u011fuk havada beton d\u00f6k\u00fcm\u00fc s\u0131ras\u0131nda al\u0131nabilecek \u00f6nlemleri \u015f\u00f6yle s\u0131ralayabiliriz;<\/strong><\/p>\n\n\n\n