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水泥地為什么不能燒火

  • 生活
  • 2023-04-17 14:08

燒火會(huì)使地面發(fā)熱,引起水泥地面遇熱膨脹,導(dǎo)致地面開裂或鼓起。水泥最適應(yīng)的環(huán)境是有水,或是濕度大的環(huán)境,濕度大其凝固力越強(qiáng),在混凝土地面上燒火會(huì)大大降低水泥強(qiáng)度,過一段時(shí)間混凝土就會(huì)松散解體,失去凝固效果。

水泥地面養(yǎng)護(hù)***:

1、養(yǎng)護(hù)方式的選擇,混凝土地面鋪筑完成后應(yīng)立即開始養(yǎng)護(hù)。在雨天或養(yǎng)護(hù)用水充足的情況下,也可采用覆蓋保濕膜、土工氈、土工布、麻袋、草袋、草簾等灑水濕養(yǎng)護(hù)方式。不宜使用圍水養(yǎng)護(hù)方式。

2、養(yǎng)護(hù)時(shí)間,應(yīng)根據(jù)混凝土地面抗壓強(qiáng)度增長(zhǎng)情況而定,不宜小于設(shè)計(jì)抗壓強(qiáng)度的80%,應(yīng)特別注重前7天的保濕保溫養(yǎng)護(hù)。一般養(yǎng)護(hù)天數(shù)宜為14-21天,高溫天氣不宜少于14天,低濕天氣不宜少于21天。

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