## 1 Introduction  
Cement, fine, and coarse aggregates are combined with water to make a composite material called concrete [1]. Concrete is a flexible material in a fresh condition that can be quickly blended to fit a range of particular demands and molded into almost any shape. Ordinary portland cement is the most often used cement for manufacturing concrete [2]. The study of concrete characteristics and their practical applications are covered by concrete technology [3]. Floors, columns, beams, slabs, and other load-bearing components are made of concrete in building construction [4, 5, 6]. Chemical admixtures known as water-reducer additives are added to concrete mixtures to lower the water content or slow the concrete setting rate while preserving the mixture flowability. Several liquid and powdered water reduction additives are available [7; 8]. Chemically, water-reducer additives fall into three groups. First, Sulfonate Naphthalene Formaldehyde (SNF); then, Formaldehyde Sulfate (SMF); and finally, sulfonate and carboxylic copolymers [9; 10; 11]. Polycarboxylate ether (PCE) (high-scale water reduction) is one of the most common water-reducer additive types [12]. Through the adsorption and dispersion of cement components, water-reducer additives are active in the cement waterways network [13; 14; 15]. Water-reducer additives improve concrete flowability by dispersing agglomerated cement particles [16]. Concrete compressive strength, a significant mechanical characteristic, is often measured using concrete specimens after a standard curing period of 28 days. Various factors affect the strength of concrete, including cement strength, water content, w/c, and aggregate quality. The conventional method for modeling the impact of these factors on the concrete compressive strength begins with an assumed form of an analytical equation and is followed by a regression analysis utilizing experimental data to identify the equation's parameters [17]. Polymers are one of the chemical admixtures used to improve the properties of fresh and hardened concrete [15; 16; 17; 18]. Polymers affect cement setting times, hydration, flowability, and strength. Many types of polymers are present in liquid and powder forms. Polycarboxylate (PCE) (high-scale water reduction) is one of the most common polymer types [19]. The currently available superplasticizers can be divided into three categories according to the chemical compound. The first is condensed with Sulfonate Naphthalene Formaldehyde (SNF), the second Formaldehyde Sulfonate (SMF), and the last is made up of sulfonate and carboxylic copolymers, for example, Polycarboxylate Superplasticizers (PC) in the Sulphonate group. Concrete quality and durability can be significantly enhanced with PC superplasticizers [20]. Superplasticizers are activated in the cement waterways network by adsorption and dispersion of cement parts. The main way in which polymers increase the flowability of concrete is to disperse agglomerated cement particles. The fluidity of superplasticizers depends mainly on their adsorption on concrete surfaces [21; 22; 23; 24; 25; 26; 27]. The effects of polymers (Polycarboxylate-Superplasticizer) in liquid form have been studied to enhance concrete's mechanical properties, such as compressive strength [12]. There are several methods for modeling the properties of materials, including computational modeling, statistical techniques, and recently developed tools such as regression analyses and Artificial Neural Networks (ANN) [33]. Multilinear regression analysis, M5P-tree, and ANN are techniques widely used to solve problems in construction project applications [18; 19; 20; 21; 22]. Nonlinear regression, multilinear regression analysis, and M5P-tree are construction problem-solving methodologies [28; 29; 30]. M5P-tree was initially introduced by [31]. This tree technique adapts to each sub-location by classifying or dividing data into various spaces. Error is estimated using each node's M5P-tree tree division criterion. Variance measures class mistakes.