Mineral materials — cement, lime, talc, bentonite on SMIALA – Big-Bag Transloading & Repackaging | PHS Magnum Poland

Hydrated lime and quicklime — properties, bulk density, bulk transport

Sun, 19 Oct 2025 00:00:00 +0000

Definition

Hydrated lime (slaked lime, calcium hydroxide, Ca(OH)2) is a fine, white powder produced by the reaction of quicklime CaO with water. Quicklime, in turn, is calcium oxide CaO, the product of firing limestone at a temperature of around 900–1100 °C. Both forms are strongly alkaline, hygroscopic and — most importantly from a logistics standpoint — exceptionally light and dusty, which completely changes the way they are transported in bulk compared with polymer granulates.

Bentonite — properties, applications and bulk transport of a clay material

Wed, 30 Jul 2025 00:00:00 +0000

Definition

Bentonite is a fine-grained clay rock whose main component — and the one that determines its properties — is montmorillonite, a smectite-group mineral capable of swelling on contact with water and forming thixotropic suspensions. It is formed from the alteration (illitisation and smectitisation) of volcanic ash and tuffs, which is why bentonite deposits are geologically linked to past volcanic activity.

Bentonite is one of those mineral materials that travel in big-bags, in bulk in silo trailers and in 25 kg bags alike. From a logistics standpoint it is both rewarding and troublesome: chemically inert, non-flammable and non-toxic, yet at the same time dusty and extremely sensitive to moisture. A brief contact with water is enough for it to start swelling and caking — and then a free-flowing powder turns into a sticky mass that can no longer be transferred by gravity.

Calcium carbonate (GCC/PCC) — mineral filler for plastics: meal transloading

Sun, 13 Jul 2025 00:00:00 +0000

Definition

Calcium carbonate (CaCO3) is a mineral calcium compound, supplied to industry as a white meal or powder of varying fraction, used above all as a filler for plastics, paper, paints and rubber. It occurs in two basic commercial varieties: GCC — ground from natural rocks, and PCC — precipitated chemically, with a purer composition and a finer, controlled grain.

It is one of the most widespread and cheapest mineral raw materials of industry. From the perspective of a bulk-materials terminal, calcium carbonate is a cargo of a dual nature: chemically completely safe (inert, non-toxic, with no ADR classification), yet logistically demanding — because in the form of a fine meal it generates dust and cakes like any very fine mineral powder.

Cement in bulk — silo transport, bulk density and storage

Wed, 18 Jun 2025 00:00:00 +0000

Definition

Cement is a hydraulic mineral binder, produced by firing limestone-clay raw materials into clinker and grinding it with additives, which hardens after mixing with water and binds aggregate into concrete; in bulk transport it has a bulk density of around 1100–1600 kg/m³ and is classified per PN-EN 197-1 as CEM I to CEM V.

Cement is not a cargo that passes through our terminal — in Chorula we work with plastic granulates and other bulk materials that flow well and are not dangerous goods. We describe it here as a model example of a mineral material transported by silo, because the principles of bulk-material physics — bulk density, hygroscopicity, compartment cleanliness — are common to cement and granulate alike, even though the consequences of ignoring them can differ. Cement is also one of the most mass-produced bulk materials in the world, so understanding its logistics organises the whole body of knowledge about bulk transport.

Quartz sand — properties, bulk density and bulk transport

Wed, 12 Feb 2025 00:00:00 +0000

Definition

Quartz sand (silica sand, silica) is a loose mineral material composed for the most part of quartz grains, that is the crystalline form of silicon dioxide (SiO2). It is a heavy, hard and abrasive material, and its dust in the form of crystalline silica is harmful to health. It is used in foundries, the glass industry, water filtration and construction.

Among bulk materials, quartz sand sits at the opposite pole from light polyethylene granulates — closer to such heavy cargoes as cement. It is a good example of a cargo whose entire logistics is decided not by volume but by mass and grain character. A material seemingly the simplest possible — “sand is sand” — yet demanding in practice, because it combines three troublesome features: it is heavy, it is abrasive, and it generates dust that must not be inhaled.