An extension collar is provided for use with a pail having an opening and containing mixable building material. The collar includes an annular body with an upper edge, an opposite lower edge, and a sidewall connecting the edges. In addition, the body has a diameter that is complementary to, and insertable into the opening of the pail such that upon insertion into the pail, the collar adds to a height of the pail.

A material discharge system having at least one rotating member disposed within at least one chamber of a holding container. Each rotating member has a central hub with a plurality of arms that extend radially and transversely away from the central hub. The holding container has at least one discharge chamber.

A bag or liner can be sized to fit into a bucket, such as a five gallon bucket. The bag or liner can extend above the height of the bucket to form a funnel portion to assist in pouring material into the apparatus inside the bucket. The bag or liner can have graduations corresponding to volume of material poured into the bag or liner and bucket to assist in mixing ingredients of a material. The bag or liner can include a flat bottom wall and internal seams to conform to the bucket's shape. The bag or liner can include perforations to permit detachment of the funnel portion of the bag or liner. To enhance the preservation of mixed ingredients and the workability of the mixed ingredients, the bag or liner can include a re-sealable seam at a top opening of the funnel portion that permits evacuation of air enclosed by the bag or liner through a one-way valve that supports vacuum packaging. The bag or liner can include integral handles to allow easy removal of the bag or liner from the bucket.

A building material apparatus includes at least one building material transport part which follows a building material drum, wherein the building material transport part is designed to transport building material which is to be at least partially cured, and at least one part sensor. The part sensor is arranged on and/or in the building material transport part and is designed to detect at least one intensive variable, or at least one variable which corresponds at least to the intensive variable, of the building material in the building material transport part.

Methods, systems, and devices, are developed for creating a means of in-situ placement of a concrete mix that can have the thixotropy to hold vertical dimension without containment, while maintaining pliability to be pumped into place and manipulated to a desired shape, and can be combined with concrete set accelerators, allowing subsequent layers of this concrete mix to be continuously stacked in place to build tall walls and such without the use of forms. Concrete without these special properties is pumped toward the point of placement where it is modified by injecting and mixing, into that line of pumped concrete, an admixture containing thixotropes, thickeners and/or set accelerators or other modifiers to provide these properties and other improvements. This method allows conventional plant batching with commonly available constituent materials for batching an economical concrete that is delivered to a jobsite and then is pumped most of the way to a point of placement, before inline modification; allowing minimal conveyance and pumping of a zero-slump and set-accelerated concrete mix, avoiding difficulties and risk associated with pumping such a modified concrete mix. Various means of metering the injection of the admixture flow rate to correspond proportionally to the concrete flow rate are also disclosed. Alternatively a means for modifying a volumetric concrete batching and mixing system to achieve the same result is disclosed. A system is disclosed for defining a vertical or sloped concrete surface utilizing a movable beam attached to guide elements with sliding brackets, with the beam contact surface optionally having an active non-stick system.

A method of slip forming a concrete structure can include using a first slip form mold that travels along a path to form a portion of a concrete structure by delivering a first flow of concrete into the first mold through a first hopper. The first hopper can be configured to receive the first flow of concrete. The portion of the concrete structure can be modified using a second slip form mold different from the first mold by advancing the second mold along the concrete structure and, while advancing the second mold, delivering a second flow of concrete into the second mold through a second hopper that is configured to receive the second flow of concrete.

A trough-support system includes a trough, an arm rest and a handle. In some embodiments, the body of the arm rest is designed to curve around the arm of a user. The arm rest and handle can include one or more magnetic tool holders that can hold a tool or instrument. The handle can include a strap with a magnetic tool holder that can hold a tool or instrument. Various parts of the arm rest, handle and/or strap can be made of magnetic material to hold tools.

A concrete container has a barrel having an open top, a closed bottom, and a discharge conduit near the closed bottom extending away from the barrel, a hose connected to the discharge conduit, and a valve attached to the discharge conduit.

A method of slip forming a concrete structure can include using a first slip form mold that travels along a path to form a portion of a concrete structure by delivering a first flow of concrete into the first mold through a first hopper. The first hopper can be configured to receive the first flow of concrete. The portion of the concrete structure can be modified using a second slip form mold different from the first mold by advancing the second mold along the concrete structure and, while advancing the second mold, delivering a second flow of concrete into the second mold through a second hopper that is configured to receive the second flow of concrete.

The present disclosure provides for a container having an interchangeable liner. The container is comprised of a bottom portion having an aperture to receive the interchangeable liner as well as securing protrusions and stabilizing members. The securing protrusions serve to cooperate with the aperture to lock the liner within the container, whereas the stabilizing members serve to stabilize the container when a substance within the container is being mixed.