Ultrahigh-strength concrete with ultrahigh pumping performance and preparation method of ultrahigh-strength concrete

Ultrahigh-strength concrete with ultrahigh pumping performance and preparation method of ultrahigh-strength concrete

  • CN 105,503,054 A
  • Filed: 12/24/2015
  • Published: 04/20/2016
  • Est. Priority Date: 12/24/2015
  • Status: Active Application
First Claim
Patent Images

1. there is a super high strength concrete for super high pump-conveying property, it is characterized in that:

  • it comprises the component of following parts by weight;

    Cement 300-380 part, sand 570-590 part, stone 1100-1200 part, water 160-175 part, stone flour 30 ~ 35 parts, flyash 135-150 part, zeolite powder 15-25 part, breeze 70-90 part, water reducer 15-20 part, silica flour 22-35 part, air entrapment agent 0.03-0.04 part;

    Wherein, the technical indicator of said components is as follows;

    Cement;

    strength grade >

    =42.5Mpa, 3d >

    =22Mpa, 28d >

    =47Mpa;

    Sand;

    II district'"'"'s medium sand, silt content≤

    2.0%, clod content≤

    0.5%;

    Stone;

    5-25mm rubble, silt content≤

    0.5%, clod content≤

    0.2%, elongated particles≤

    8%;

    Stone flour;

    stone flour is the common name of the powder of stone, white powder, 300-400 order, CaCO 3content>

    =90%, iron-holder≤

    1%, magnesium content≤

    1%;

    Flyash;

    F class I grade of flyash, water demand ratio≤

    95%, loss on ignition≤

    5%;

    Zeolite powder;

    dioxide-containing silica 80-99%, 100-400 order, 1-4mm;

    Breeze, S95 level or S105 level activity index 7d >

    =75%, 28d >

    =95%;

    Silica flour;

    specific surface area 2000-2800m 3/ ㎏

    ;

    Water reducer;

    polycarboxylate high performance water-reducing agent, concentration >

    =15%;

    Air entrapment agent;

    AE class air entrapment agent.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×