Water-resisting high-strength gypsum-base concrete brick or building block, and producing method thereof

Water-resisting high-strength gypsum-base concrete brick or building block, and producing method thereof

  • CN 101,265,067 A
  • Filed: 04/28/2008
  • Published: 09/17/2008
  • Est. Priority Date: 04/28/2008
  • Status: Active Application
First Claim
Patent Images

1. , a kind of water-resisting high-strength gypsum-base concrete brick or building block, it is characterized in that, the weight proportion of each constituent materials is:

  • gypsum base composite gelled material 10%~

    100%, setting accelerator 0~

    6%, filler 0~

    90%, hardening accelerator 0~

    1%, water reducer 0~

    1%, lime 0~

    6%, semi-hydrated gypsum 0~

    15%;

    Described gypsum base composite gelled material is made up of gypsum and active admixture and alkali-activator, the weight proportion of each constituent materials, gypsum;

    active admixture;

    alkali-activator=55%~

    70%;

    15%~

    40%;

    5%~

    15%;

    Described gypsum is a kind of in anhydrite, the dihydrate gypsum or both mixtures, and the weight proportion of described anhydrite and dihydrate gypsum is an anhydrite;

    dihydrate gypsum=0~

    100%;

    100%~

    0;

    Described anhydrite is the dehydrated gyp-of levigated fluorgypsum or direct grinding, or dihydrate gypsum is through the anhydrite II of 360~

    1000 ℃

    of calcining formation, slow dissolubility anhydrite II-S comprising 360~

    500 ℃

    of calcining formation, 500~

    700 ℃

    of insoluble anhydrite II-U that calcining forms, 700~

    1000 ℃

    of cast anhydrite II-E that calcining forms;

    Fluorgypsum, anhydrite II-S, anhydrite II-E granularity are 80~

    300 orders, and the granularity of natural anhydrite, anhydrite II-U is 250~

    400 orders;

    Described dihydrate gypsum is the natural dihydrate gypsum, desulfurated plaster of direct grinding, through pretreated phosphogypsum or pretreated citric acid gypsum;

    Described active admixture is one or more the mixture in levigate blast furnace slag, fine-ground fly-ash, levigate Fluorspar Powder, levigate lithium white residue powder, silicon ash, levigate ferroalloy slag or the levigate slag;

    Described alkali-activator is silicate cement, aluminosulfate cement, aluminate cement, lime, alkaline residue or carbide slag;

    Described setting accelerator is for being selected from Na 2SO 4, K 2SO 4, NaHSO 4, KHSO 4, CuSO 4, FeSO 4, AL 2(SO 4) 3, ZnSO 4, KAL (SO 4) 212H 2O, K 2Cr 2O 7, the calcining AL 2(SO 4) 3In one or more mixture;

    Described filler is sand, rubble, slag or metallurgical slag.

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