爐渣墊層技術交底.doc
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交底內容：
爐渣墊層
本技術交底適用于混凝土基層上做爐渣墊層工程。
1．材料要求
(1)爐渣：宜采用煙煤爐渣，表觀密度應為800kg/m3以內；爐渣內不應含有機雜質和未燃盡的煤塊，粒徑不應大于40mm，且不可大于墊層厚度的1/2；爐渣粒徑在5mm以下者，不得超過爐渣總體積的40%。
(2)水泥：325號普通硅酸鹽水泥或礦渣硅酸鹽水泥，也可用火山灰水泥或粉煤灰水泥。
(3)石灰：塊灰使用前需經水粉化，過篩；也可用加工磨細石灰粉水溶后使用。
2．主要機具
(1) 機械：攪拌機、手推車、平板振搗器。
(2)工具：壓滾(直徑200mm、長600mm)，平銑、計
Cards on the table contents:
Slag cushion
The technical disclosure applies to do a slag concrete base cushion construction.
1. Material requirements
(1) slag: appropriate use of bituminous coal slag, and the apparent density should be within 800kg/m3; slag can not contain machine impurities and unburned coal, particle size should not exceed 40mm, and can not be greater than the thickness of cushion 1 / 2; slag particle size of 5mm or less, not more than the total volume of 40% slag.
(2) Cement: ordinary portland cement 325, portland cement or slag, can also be volcanic ash cement or fly ash cement.
(3) Lime: block gray gouache of using the former subject, sifted; can also be processed after the use of water-soluble powder pulverized lime.
2. Major equipment
(1) Mechanical: mixers, carts, plate vibrators.
(2) Tools: pressure roller (diameter 200mm, length 600mm), flat milling, namely,