import type { AggregateInput, AggregateResult, AggregateType, AggregateDensity } from './types.js';
/**
 * Common aggregate densities (kg/m³)
 */
export declare const AGGREGATE_DENSITIES: AggregateDensity[];
/**
 * Get density for a specific aggregate type
 *
 * @param type - Aggregate type
 * @returns Density in kg/m³
 */
export declare function getAggregateDensity(type: AggregateType): number;
/**
 * Calculate how much area can be covered with a given volume at a specific depth
 *
 * @throws {RangeError} Volume and depth must be greater than zero
 * @param volumeM3 - Volume in cubic meters
 * @param depthCm - Depth in centimeters
 * @returns Coverage area in square meters
 */
export declare function aggregateCoverage(volumeM3: number, depthCm: number): number;
/**
 * Calculate aggregate volume, weight, and coverage
 *
 * Formulas:
 * - Volume = length × width × depth
 * - Weight = volume × density
 * - Coverage area = length × width (footprint)
 *
 * @throws {RangeError} All dimensions must be greater than zero
 * @throws {RangeError} Custom density must be provided and greater than zero
 * @throws {RangeError} Unknown aggregate type: {aggregateType}
 * @param input - Aggregate input parameters
 * @returns Aggregate calculation results
 */
export declare function aggregate(input: AggregateInput): AggregateResult;
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