According to the present invention, there is provided a filler compound, the filler compound comprising filler particles and a binder, wherein the filler particles comprise particles of at least one glassy material, and the particles of glassy material are at least 10 wt. % of the dry mass of the filler compound, and wherein at least 30 wt. % of the filler particles have a diameter between 50 and 100 microns inclusive. Use of a filler compound in the erection of a structure is also described.

According to the present invention, there is provided a filler compound, the filler compound comprising filler particles and a binder, wherein the filler particles comprise particles of at least one glassy material, and the particles of glassy material are at least 10 wt. % of the dry mass of the filler compound, and wherein at least 30 wt. % of the filler particles have a diameter between 50 and 100 microns inclusive. Use of a filler compound in the erection of a structure is also described.

Provided are a cement mortar additive for extrusion molding, a cement mortar for extrusion molding, and an extrusion-molded product. The disclosed cement mortar additive for extrusion molding includes hydrogelated cellulose ether.

A fastening system for chemically fastening an anchor, the fastening system including a chemical anchor that is a ready-for-use two-component mortar system based on albuminous cement, and an anchor rod comprising an attachment region and an anchoring region. The anchor rod is insertable into a borehole and has a profiled section including a plurality of expansion sections disposed axially in a row which are conically shaped.

A fastening system for chemically fastening an anchor, the fastening system including a chemical anchor that is a ready-for-use two-component mortar system based on albuminous cement, and an anchor rod comprising an attachment region and an anchoring region. The anchor rod is insertable into a borehole and has a profiled section including a plurality of expansion sections disposed axially in a row which are conically shaped.

The invention relates to a composition for building construction comprising a paper sludge deriving from de-inked paper recycling processes, the sludge having a grain size distribution D90 in the range of 30 to 1000 m and an ingredient selected from the group consisting of modified cellulose, cement, furnace slag and mixtures thereof.

The present invention provides a dry mix composition of a powder of an ultra high-viscosity cellulose ether having one or more polyether groups, the cellulose ether having a 1 wt. % aqueous solution viscosity (20 C, 2.55 s.sup.?1 shear rate as determined using a controlled rate rotational rheometer) ranging from 10,000 to 100,000 mPa.Math.s, or, preferably, 11,000 to 16,000 mPa.Math.s, a graded aggregate, and a hydraulic cement, or a wet granular mix of the cement, graded aggregate and an admixture therefor including the cellulose ether. When combined with water to form a wet granular hydraulic cement composition, the composition of the present invention behaves like asphalt compositions and has zero or near zero slump, a high lubricity and 13.6 wt. % or less of water, or, preferably, from 5 to 11 wt. % of water, based on the total weight of the dry mix composition. The cellulose ether enables lubricity without impairing compaction and without causing air entrainment.

Cement paste compositions including modified cellulose nanomaterials such as modified cellulose nanocrystals and modified cellulose nanofibers, are disclosed herein. In some embodiments, the cement paste compositions include from about 0.005 volume % to about 1.5 volume % modified cellulose nanomaterial.

The present invention provides cementitious tile adhesives comprising ordinary Portland cement, sand or another inorganic filler, and from 0.12 to 0.6 wt. % of total solids of one or more polyether group containing crosslinked cellulose ethers. The present invention also provides methods of making the polyether group containing crosslinked cellulose ethers comprising crosslinking a cellulose ether at 90 C. or less, in an inert atmosphere, e.g. nitrogen, in the presence of a polyether group containing crosslinking agent and in the presence of alkali; the process may comprise part of a stepwise addition process of making of a cellulose ether itself in which the crosslinking of the cellulose ethers precedes at least one addition of alkyl halide or alkylene oxide to form, respectively, alkyl or hydroxyalkyl groups on the cellulose.

A fire-resistant two-component mortar system, which includes a component A and a component B, which is in an aqueous-phase for initiating a curing process. Component A includes water, aluminous cement, a mineral filler, a plasticizer, and a blocking agent selected from phosphoric acid, metaphosphoric acid, phosphorous acid, and a phosphonic acid. Component B includes an initiator, a retarder, a mineral filler, and water,