Agricultural Lime (Aglime)
The major agricultural use of limestone is the direct application of Aglime to correct soil acidity. The natural tendency of many soils, particularly in areas of moderate to heavy rainfall is to become acid with time. The acid soil condition can be effectively neutralized and soil pH maintained at agronomically acceptable levels by regularly applying agricultural limestone. The total effectiveness of agricultural limestone is a function of its purity (calcium and magnesium content) and fineness of grind. Central Stone Company participates in the Illinois Voluntary Limestone Program Producer Information handbook. This annual publication produced by the Illinois Department of Agriculture and the Illinois Department of Transportation gives a county by county, producer by producer evaluation of available Aglime sources. A copy of this can be obtained by visiting the Illinois Department of Agriculturels website.
Asphalt and Concrete Sand
Asphalt and concrete sand consist of fine aggregate (man-made or natural) sized between 3/8 inch and down to the #200 sieve. The required characteristics will vary and may include particle size, shape, specific gravity, absorption, toughness and resistance to degradation, cleanness and resistance to alkali-reactions. We supply asphalt and concrete sand to meet local, state and Corps of Engineers requirements.
Aggregate and asphaltic cement can be combined in a number of different ways to form a pavement base and surface. The required aggregate characteristics vary with the type of construction. Some of these characteristics are size, shape, resistance to degradation, soundness, absorption and resistance to polishing. Our asphalt stone meets or exceeds local, state and Corps of Engineers requirements.
Base Stone (Aggregate Base)
Aggregate base is largely used as a structural product in pavements for highways, airfields, parking lots, storage areas and as sub-ballast or ballast layers for railroads. The function of the aggregate base courses located under Portland Cement Concrete or asphaltic concrete layers is to spread the stress applied to the pavement surface by traffic loading. Other significant usages of aggregate base are surfacing stone for economical farm to market roads, sidewalks, paths, walkways, and parking areas. We produce various sizes of base stone to meet local, state and Corps of Engineer requirements.
Building Material Products
The Building Material Department represents many different manufacturers, selling and delivering the following product groups to contractors and the general public in Western Illinois and Eastern Iowa:
Portland Cement Concrete is a mixture of cement, course aggregate, fine aggregate (sand man made or natural) and water. The workability, strength, durability, moisture susceptibility, and overall performance of Portland Cement Concrete are influenced greatly by the aggregate characteristics. Some of these characteristics are size, freeze/thaw resistance, cleanliness, hardness, toughness, porosity, particle shape, specific gravity and chemical stability. Our concrete stone meets or exceeds local, state and Corps of Engineers requirements.
Crushed Stone Products
Crushed limestone products are used in a variety of applications. Road rock contains material from ¾ inch down to dust, and is used in driveways, walkways, and as a base for segmental walls. The ¾ inch and ½ inch material is washed, sized and used for drainage, driveways, walkways and landscaping.
This material is graded, course, and washed aggregate available in a variety of sizes and colors. Particle sizes were formed by glacial or river action into rounded particles. One use is for low maintenance ground cover. Other uses include driveways, walkways, patios, and landscaping. Sizes vary from ½ inch to 2 inch.
Fill sand is used in many applications such as backfill around structures, fuel tanks and utility pipe. Fill sand is generally considered to be a fine aggregate sized between 3/8 inch down to the #200 sieve. This material can be man-made or natural. The required aggregate characteristics will vary and may include cleanliness, hardness, toughness, particle shape, durability and chemical stability. We supply fill (natural and man-made) to meet local, state and Corps of Engineers requirements.
Mason sand is a fine, natural, screened and washed material primarily combined with Portland cement and lime or mason cement. It is used by mason contractors to bond brick, concrete block or natural sand together. The sand is light brown or tan in color. Other uses include the leveling base for brick or concrete pavers in the construction of patios and in children’s play areas.
Aggregate rip rap is used in a wide variety of applications such as subsurface drainage, the treatment of water and wastewater, erosion control associated with slope protection, scour at bridges, channel protection and shoreline protection. Critical aggregate properties such as gradation, strength, durability, permeability, particle shape, particle texture, surface coatings, and chemical reactivity are considered for the proper use in each application. Individual rip rap pieces may vary in weights from less than a pound to several thousand pounds depending upon usage. We produce rip rap that meets local, state and Corps of Engineer requirements.
Rounded coarse aggregate, or “roofing gravel”, is used to protect built-up and rubber roofing systems. The gravel holds the roofing material down and protects it from damage by ultraviolet sunlight. Light-colored gravel also reflects the sun’s heat. Sizes vary from 3/8 inch to 1 ½ inch.