砖、瓦、灰、砂、石是我国传统的建筑材料,其中石灰(我国北方称白灰)迄今还在我国广泛应用。然而,石灰在其生产、贮运、使用过程中容易污染环境,影响人们健康。现在,有一种新颖的砂浆粘结材料——石灰精可以替代砂浆中的全部石灰。该材料有二个品种:一种呈棕褐色胶液状,为SHS-1型石灰精,用1kg能替代混合砂浆中的500kg石灰;另一种呈褐色微小 Bricks, tiles, ash, sand, and stone are traditional building materials in China. Lime (white ash in northern China) is still widely used in China. However, lime is prone to pollute the environment during its production, storage, and use, affecting people’s health. Nowadays, there is a new type of mortar binder material - lime can replace all the lime in the mortar. There are two varieties of this material: a tan gum liquid, SHS-1 lime, with 1kg can replace 500kg of lime in the mixed mortar; the other is brown tiny